Surging when cold on a grade

From : gary

Q: hey tbone bush kicked kerrys ass nov 2nd. rotflmao! if you have a volt meter or multi-meter you can test it yourself. -- if at first you dont succeed youre not cut out for skydiving .

Replies:

From : hc

hey craig in my reading of the cummins site back when i bought my 02 2500 235/460 they said to not use synthetic for the break-in period 5000-20000 miles. i use that information to build a theory that the synthetic protects so well that the engine wont break in properly. yes i could be wrong in my interpretation of their statement but thats what i think. so by that logic running synthetic would be great for making your engine last the years once it was properly broken in. http//www.cummins.com/cmi/content.jspsiteid=1&langid=1033&menuid=6&overviewid=29&anchorid=30&menuindex=4&index=0#q9 from above is it ok to use synthetic oil with my cummins engine cummins recommends that you not use synthetic motor oil during the break-in period of 5000-20000 miles based on the type of driving to allow proper seating of the piston rings. beyond that mileage it is ok to use synthetic oil. im using the shell 5w-40 synthetic now but i dont have enough gauages namely oil temp to know what if any diff its made. but i feel better cause i think it protects better. i just went to my second oil change on it and after 1000 miles it was still mostly golden in color and not black for what thats worth. hth. --hc .