Quote:
|
Originally Posted by 986chris
Here's what I know. 03 Sliverado 8.1 lt gas 105,000 miles I use 5w30 mobile 1. haven't changed oil in 3 years add 1-2 qts. between computer recommened changes, new filter every other time. feels just as fresh as new. Truck gets used for every thing short drives, trailering, highway. it's my own little experiment.
|
Quick story... once I bought a dodge van with 96k miles. Drove fine, oil looked fine on dipstick. Drove for a couple months, got sick of top-heavy feeling and sold it. New owner drove for a couple months then it threw a rod! Mechanic found 1" of sludge in the oil pan and said the oil had probably never been changed! Everything seemed fine but that was a disaster waiting to happen!
I trust the wear shown on used oil analyses and even more so those folks that have torn into engines and seen the wear and sludge buildup. There is a tremendous amount of data out there and most everyone says that earlier is better. I hope the experiment doesn't hold any surprises down the road. You are a brave man.