2nd Update on 2002 2500 Ram Power Loss

From : john a reichert

Q: steve lusardi stevenospam@lusardi.de wrote roy im not roy. roy is not me. no offense roy you are mistaken the api is not rock bottom. actually it is. the very highest api approvals dont come anywhere close to the minimum now obsolete acea approvals. for clarity the api american petroleum institute tests are rather comprehensive and these tests are performed on a special test engine where the lubricity of the oil is tested across its utility temperature range and the additive package is also tested for other attributes like particulate suspension and other factors. api is a bunch of motor oil marketers getting together and deciding on a standard that their oils will meet at the highest profit margin using the cheapest base stocks. rather than rely on the guy selling me oil to tell me what i should use it makes much more sense to rely on the manufacturer of the vehicle to specify which oils meet their approvals. survived their testing anything else is like a third grader dictating what is a passing grade in his/her respective school. the api rating is based on the best test passed by the oil. yeah and -they- invent the test which makes it not so best. the first letter represents the oils intended usage c for compression ignition engines diesel and s for spark ignition gasoline. actually s = service and c = commercial the second letter indicates the severity of the test passed like sh or cf. severity on the other hand the sae test is a viscosity test only against a mean standard similar to the saybolt scale used by machine tool manufacturers. this is where a fixed volume of oil is poured through an orifice of a particular size and is measured in time like 30w. the multi-grade rating indicates the pour time at 0 degrees and at 212 degrees like 10w30 which states that the orifice time at 0 degrees is equivalent to 10w and 212 equivalent to 30w. you jump from tests and approvals to sae viscosities... why i dont know. in point of fact amsoil no longer has their oil tested uh-oh! so no; sequence iiie sequence iiif sequence iiig sequence iva sequence vd sequence ve sequence vg astm d5533 astm d6593 astm 6891 astm 4683 cec l-38a-94 etc etc etc.... one would buy this stuff because as it surpasses the most severe api tests by very wide margins. and the proof is where and like i said the most severe api tests dont even come close to the minimum acea tests. amsoil is a double diester based oil and is fully synthetic using no petroleum. fully synthetic is no guarantee of anything. the lubricity of petroleum based oils starts deteriorating around 220 degrees f and amsoil starts to fall off around 350 degrees f. mobil 1 and the like are synthesized petroleum based oils and although superior to pure petroleum oils they are inferior to amsoil in both temperature and lubricity. really checking the high temperature/high shear hths* viscosities of amsoil against mobil 1 shows not much difference for the products that would typically be used for normal day to day service. i.e. excluding the racing oil i bet if i worked at it a little i could find some castrol or pentosin or elf oils that would put amsoil to shame. the real question you need to ask; is this extra performance worth the higher cost which extra performance would that be 0.06 centipoise @150*c you better believe it isnt worth the higher cost or the brain washing. this is especially true when contamination is an issue as in a diesel application where oil changes are the only solution and extended usage is not available to offset the higher cost. amsoil has its own limitation though. amsoils typical failure mode is that it tends to gel into little balls that can block oil passages and filters and i am not sure what causes this and it can happen with new oil as well as old. sounds like another good reason to avoid it. * hths = viscosity in centipoise @ 100*c 300* f .

Replies:

From : granny grump

once again i offer you folks a chance to jump or hop on the pats wagon. rabbit your beloved bengals are up for a thumpin monday night. what do ya say gbmfg roy this is a hard one to call. which bengals is gonna show up the team that handled the ravens the first week or the sorry asss that lost to the browns. im going to take the bengals if you give me 21 points. i think that is only fair. denny hmmmm.. you dont want much do ya the pats have been hitting 38 points per game of late so what the hell yer on! thinking about it last year you lost the appetizers dinner drinks desert tip you lost it all. so where would you like to start this year you might want to make it light on yourself.g oh no friggin wc sliders!! that really hurt!!! wtf.... well just go double or nothing on last year. i might as well feed your whole family!! bg denny wow!! a manly bet from the rabbit! im impressed. vbg are you sure you really want to do this i dont want to hear a lot of wailing from ya when the bengals get their ass beat. just stfu and start eating....... since you aint showing up around here i suppose you want a gift certificate to a local eatery on the coast. maybe i could ups you a meatloaf dinner from ruths diner. next best thing to a castle.. hey! we might get there yet. now that sue has decided to go to fl now rather than later. once things settle down and she comes to terms with her dogs situation things should smooth out. i gotta tell ya when all this moving and packing and unpacking and the dog issue is resolved a meatloaf dinner just might be the thing to lessen the stress factor.g looks like this ones a wash. i even bought a sack of alpo for the hound.... denny it was a fun game to watch. well it was for me anyway.g now after watching the game do ya want to haul your wide ride onto the wagonvbg roy .