How long does oil last?
From : jmc
Q: ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc .
Replies:
From : hammertime
on feb 26 151 pm jmc nogroupss...@nojodibody.homeus wrote suddenly without warning craig c. exclaimed 27-feb-07 1246 am on feb 26 552 am jmc nogroupss...@nojodibody.homeus wrote planning on doing *lots* of shopping; the auto parts store is only the tip of the iceberg. i love australia but the shopping in this small outback town gets very same old same old very quickly jmc youre not at harold e. holt exmouth western australia by any chance are ya i was stationed there for two years 1981 and 1982. i loved that place! diving fishing and camping were the ticket! i had a ford f150 there at the time. i put oil and filters in the cab so theyd be there when my truck arrived. only owned dodge trucks since.... cliff .
From : hustlin hank
on mar 2 542=ef=bf=bdam jmc nogroupss...@nojodibody.homeus wrote ok so im online buying some filters prolly cant get them here. =a0am i ripping myself off by buying the fram toughguard filters rather than the regular ones. =a0my driving here meets some of the types of driving in the ad extreme heat & unusually dirty roads weird statement but ill be driving some hundreds of miles of very dusty 4x4 roads in a couple of months... and many roads around here are unpaved anyway. anyway ill get a few now and gather the collective wisdom of this group for when i need to buy the next batch jmc- since oil dont wear out and only gets contaminated some companies make a centrifuge that takes out all the contaminates. google it. many of the larger commercial trucks have them. i believe they also make a smaller version for autos/pickups. they arent cheap but may be better than changing you oil and filter all the time. by using one you only need to replace any oil that was burned occasionally and clean the centrifuge. hank .
From : steve lusardi
there are 2 killers of lube oil. the first is water though condensation. this will combine with the oils residual sulpher and create sulpreric acid which corrodes the oil. the second is heat. the lubricity of oil falls dramatically when the oil exceeds 100c. exposure to these high temperatures causes the oils surface tension to increase a loss of shear strength along with viscosity. the first problem will be a non-issue in a desert environment but the second could be. an oil cooler will greatly enhance the life of your oil provided flow through the cooler is controlled with a 90c thermostat. steve on feb 26 151 pm jmc nogroupss...@nojodibody.homeus wrote suddenly without warning craig c. exclaimed 27-feb-07 1246 am on feb 26 552 am jmc nogroupss...@nojodibody.homeus wrote planning on doing *lots* of shopping; the auto parts store is only the tip of the iceberg. i love australia but the shopping in this small outback town gets very same old same old very quickly jmc youre not at harold e. holt exmouth western australia by any chance are ya i was stationed there for two years 1981 and 1982. i loved that place! diving fishing and camping were the ticket! i had a ford f150 there at the time. i put oil and filters in the cab so theyd be there when my truck arrived. only owned dodge trucks since.... cliff .
From : max dodge
generally mineral based comes out of the ground motor oil only lasts about a year. of course all this depends on the type of oil manufacturer etc. you dont say what it loks like but if its relatively clean not brown or burnt and feels good to the touch slippery and not thin like water itll go the 100 miles. they key here would be making sure that you have good oil pressure when the engine is in use. i suggest a good synthetic oil be used in your case. synthetics dont have a natural breakdown and react well to long term storage. -- max join www.devilbrad.com and find out what free exchange of info is all about. there are four boxes to be used in defense of liberty soap ballot jury and ammo. please use in that order. -ed howdershelt author ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or
From : pete
on sun 25 feb 2007 203005 -0500 roy roy@home.net wrote looks like they cut too much on harvicks left front rim.bfg a clean sweep for kenseth this weekend. harvick last weekend. could be a trend. i guess lazer cut rims arent designed for red flags! the boy did good though and took it well. rcr has really turned things around with all the cars. roy beekeep .
From : snoman
on sun 25 feb 2007 202931 -0600 tetraethylleadremovethis@yahoo.com brent p wrote how about a chicago ice storm take a cooked piece or spaghetti and try to move it by pushing on the end. what happens now try to move it by pulling on the end. what happens. can you apply this information to fwd versus rwd on snow that applies to a 2 year old playing with his food. read the autoweek article. .
From : tom lawrence
can anyone tell me what size socket fits the oil pressure sending unit on a 94 dakota 3.9 we are guessing it is a 26mm deep but no one has one to try. i hate to buy the wrong size. thanks i cant tell if the old one is the same as the new one or i would buy one to fit the new. we tried a 1 too small and 1 1/6 too big on the one in there. is there a special socket needed .
From : roy
shearing stress but they both get dirty. generall if you do not drive much you should change it at least once a year even if it is only 1000 so first you tell max hes wrong then you turn around and agree with his recommendation. fascinating... .
From : craig c
on mon 26 feb 2007 132941 gmt max dodge max340@verizon.net wrote i suggest a good synthetic oil be used in your case. synthetics dont have a natural breakdown and react well to long term storage. i am not sure where you are getting your data but several factors are involved in usefull oil life and regular motor oil can last for many years on the shelve and has not automatic 1 year and its not good. when it sits ina engine for a long period of time it can fall prey to moisutre condensation from climate changes which will contaminate any oil dino or syn. syn oil takes longer to break down for thermal and shearing stress but they both get dirty. generall if you do not drive much you should change it at least once a year even if it is only 1000 miles and better still would be twice a year in the spring to remove winter condensation and byproducts for cold starts and fall to have fresh oil before cold winter sets in. okay let the trolls come out and try to find fault here with this. showing up and baiting people is a good way to get blasted here but you know that dont ya. you only get jumped on when you post totally wrong and dangerous bs. which you do 99% of the time. although i dont agree with you
From : jmc
can anyone tell me what size socket fits the oil pressure sending unit on a 94 dakota 3.9 we are guessing it is a 26mm deep but no one has one to try. i hate to buy the wrong size. thanks i cant tell if the old one is the same as the new one or i would buy one to fit the new. we tried a 1 too small and 1 1/6 too big on the one in there. is there a special socket needed heres a link to what you need. http//www.mytoolstore.com/kd/kdengi12.html .
From : steve
marcus wrote besides reducing restriction in the filter and a bit of a boost in pressure to the bearings it is a lot easier to grab a hold of since the filter body sticks out a bit further from the mount. how does a longer filter help with oil pressure thanks steve .
From : judge seidlin
oh about 7 minutes. boo-hoo-hoo .
From : marcus
you might consider changing to the larger-style filter rather than the typical shorty-style. forgive the fram part numbers here but the shorty-style filter thats normally specified is ph16. the ph8 filter has the same threads same o-ring etc. -- but it has a longer filter body and longer element. besides reducing restriction in the filter and a bit of a boost in pressure to the bearings it is a lot easier to grab a hold of since the filter body sticks out a bit further from the mount. suddenly without warning craig c. exclaimed 27-feb-07 1246 am on feb 26 552 am jmc nogroupss...@nojodibody.homeus wrote so am i damaging my engine with old oil or is the # of miles more important as max said synthetic is your best option. as a side note ... youre in australia correct no shipping restrictions on auto-parts that im aware of. id be happy to help you get the parts you need and send them to you if that will help any. may cost a bit more with shipping and all but as has been said better to be safe than sorry. craig c. thanks for the offer craig but that sort of thing id normally get from partsamerica... cept ill be in the us for a bit coming up so i can get the parts while im there. gotta get some air filters too. planning on doing *lots* of shopping; the auto parts store is only the tip of the iceberg. i love australia but the shopping in this small outback town gets very same old same old very quickly incidentally id already made the decision to go synthetic. with what it costs for an oil change here ill probably save $$ in the long run used to do my own but i forgot one slight factor when i bought this truck arm length. really hard to reach the filter! and before you ask hubbys not much taller than i jmc .
From : mike simmons
ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc you will be ok. when you do drive it however just make sure to drive it long enough to reach operating temp for a while. the short trips dont get the engine hot enough to cook out the moisture. if you used a good quality oil on your last change youll be ok. most modern oils have enough additives to keep your tbn within an acceptable range even after a year. just dont let it happen again!..... tsk... tsk.... tsk ;^ mike .
From : jmc
suddenly without warning mike simmons exclaimed 27-feb-07 1100 am ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc you will be ok. when you do drive it however just make sure to drive it long enough to reach operating temp for a while. the short trips dont get the engine hot enough to cook out the moisture. if you used a good quality oil on your last change youll be ok. most modern oils have enough additives to keep your tbn within an acceptable range even after a year. just dont let it happen again!..... tsk... tsk.... tsk ;^ mike problem is theres nowhere to *go*. towns only a couple of miles across my longest round trip is just over 6 miles and the next nearest town im really not kidding here is i think about 300 miles away. so i either head outback or i drive around town in circles too bloody hot to go outback just now... thats my excuse for no oil change. theres no concept here about while you wait. id have to leave the truck and ride my mountain bike back from the shop. dammit its 100 degrees out there! get a blowdryer. put it on high. point it at your face. while exercising. thats what im talking about! which is why the synthetic. once a year in winter jmc .
From : pete
on mon 26 feb 2007 132941 gmt max dodge max340@verizon.net wrote generally mineral based comes out of the ground motor oil only lasts about a year. of course all this depends on the type of oil manufacturer etc. you dont say what it loks like but if its relatively clean not brown or burnt and feels good to the touch slippery and not thin like water itll go the 100 miles. they key here would be making sure that you have good oil pressure when the engine is in use. i suggest a good synthetic oil be used in your case. synthetics dont have a natural breakdown and react well to long term storage. this is total crap...oil does not beakdown ever..its the additives not the oil. it last forever... the concept that oil breaks down or wears out is not correct. just look at what has happened over the past fifteen years in regards to oil drain intervals. fifteen years ago typical recommended oil drain intervals for a 300 horsepower h.d. diesel was around 8000 to 10000 miles in an over the road truck. today the same trucks typically have 425 to 450 horsepower engines yet the oil drain intervals have increased to 15000 to 25000 miles. the same quality crude oil base stocks that were used 15 years ago are used to make oils of today. so why does the same oil today last twice as long as it did fifteen years ago the answer can be found within the additive package of todays oil. the petroleum base of oil lube does not wear out rather it is the additives within the oil that become depleted due to the presence of contamination. .
From : jmc
suddenly without warning jmc exclaimed 02-mar-07 812 pm suddenly without warning jmc exclaimed 26-feb-07 922 pm ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc ok so im online buying some filters prolly cant get them here. am i ripping myself off by buying the fram toughguard filters rather than the regular ones. my driving here meets some of the types of driving in the ad extreme heat & unusually dirty roads weird statement but ill be driving some hundreds of miles of very dusty 4x4 roads in a couple of months... and many roads around here are unpaved anyway. anyway ill get a few now and gather the collective wisdom of this group for when i need to buy the next batch jmc nevermind. have to get em in the states flyin out tomorrow and ship em myself. partsamerica wanted $20 to ship three bloody filters and a small wrench. augh! the whole parts order was only $25.00! anybody know a good online parts vendor that charges fair shipping prices to apo addresses jmc .
From : max dodge
if you have to buy them yourself and ship them back buy something other than fram like wix or one of the other well known industrial filter makers such as fleetguard. fram isnt a good filter. -- max join www.devilbrad.com and find out what free exchange of info is all about. there are four boxes to be used in defense of liberty soap ballot jury and ammo. please use in that order. -ed howdershelt author suddenly without warning jmc exclaimed 26-feb-07 922 pm ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc ok so im online buying some filters prolly cant get them here. am i ripping myself off by buying the fram toughguard filters rather than the regular ones. my driving here meets some of the types of driving in the ad extreme heat & unusually dirty roads weird statement but ill be driving some hundreds of miles of very dusty 4x4 roads in a couple of months... and many roads around here are unpaved anyway. anyway ill get a few now and gather the collective wisdom of this group for when i need to buy the next batch jmc .
From : steve lusardi
steve a larger filter reduces oil pressure drop across the filter because it presents more filter surface area to the oil flow. this is not so important if the filter operates in bypass mode but if it is used in full flow mode the pressure drop and flow restriction is very important. steve marcus wrote besides reducing restriction in the filter and a bit of a boost in pressure to the bearings it is a lot easier to grab a hold of since the filter body sticks out a bit further from the mount. how does a longer filter help with oil pressure thanks steve .
From : jmc
suddenly without warning jmc exclaimed 26-feb-07 922 pm ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc ok so im online buying some filters prolly cant get them here. am i ripping myself off by buying the fram toughguard filters rather than the regular ones. my driving here meets some of the types of driving in the ad extreme heat & unusually dirty roads weird statement but ill be driving some hundreds of miles of very dusty 4x4 roads in a couple of months... and many roads around here are unpaved anyway. anyway ill get a few now and gather the collective wisdom of this group for when i need to buy the next batch jmc .
From : mike simmons
suddenly without warning jmc exclaimed 02-mar-07 812 pm suddenly without warning jmc exclaimed 26-feb-07 922 pm ive suddenly realized its been about a year since my last oil change. dont panic now for almost three months of that time my truck was sitting on a ship visiting parts of the world ill never see. the rest of the time its done well less than 5000 miles. problem is due to circumstances beyond my control including a probably lack of compatible oil filters oil wont get changed till end of march. probably have less than 100 more miles - we dont drive much or far. so am i damaging my engine with old oil or is the # of miles more important jmc ok so im online buying some filters prolly cant get them here. am i ripping myself off by buying the fram toughguard filters rather than the regular ones. my driving here meets some of the types of driving in the ad extreme heat & unusually dirty roads weird statement but ill be driving some hundreds of miles of very dusty 4x4 roads in a couple of months... and many roads around here are unpaved anyway. anyway ill get a few now and gather the collective wisdom of
From : miles
marcus wrote on any vehicle where ive had an oil pressure gauge you can easily see that pressure is noticeably higher after the switch to the longer filter. i dont know about dodges but it seems to me that most of the time the sender is prior to the filter in which case youd see no difference. .
From : marcus
on any vehicle where ive had an oil pressure gauge you can easily see that pressure is noticeably higher after the switch to the longer filter. since the sending unit is in the circuit after the filter its showing an increase due to the less restrictive filter. im not an engineer so i wouldnt know whether the engine actually derives real benefit from any additional pressure over the standard pressure. the big difference is that the oil filter is much easier to install and remove. marcus wrote besides reducing restriction in the filter and a bit of a boost in pressure to the bearings it is a lot easier to grab a hold of since the filter body sticks out a bit further from the mount. how does a longer filter help with oil pressure thanks steve .