Duramax Lifetime Supporter
Join Date: May 2015
Highest miles, over 200k, on a stock engine [Now allowing injectors & fuel pump]
There are a number of threads about high mileage but I wanted to start one for all Duramax engines that are stock, unmodified, unrepaired. Who have at least 200k miles on a stock engine, fuel pump, injectors, turbo, and everything else attached to the engine. The only repairs permitted are regular maintenance, belts, hoses, idler pulleys, & tensioner. Nothing else attached to the engine.
Edit: Now allowing injectors, fuel pump, and accessories not required for the truck to get you home. Example: You can drive without power steering, AC, or an alternator (until the batteries die)
The only modifications permitted are lift pump, tunes, deletes, bypass filter, exhaust, Mobile DelVac/Transynd. Edit: Also, anything that would probably never need to be replaced like an intercooler or boost tubes, intake, etc..
I have an '08 2500 LMM with 235k miles. Very little towing and nothing heavier than a scissor lift, but the truck weighs 11k lbs and rolling on bigger tires, 285/75-16. I have not done anything to the engine but oil and filters. The belts, hoses, coolant (yeah, I know) are still stock. Actually the only thing not stock are the SSBC (R.I.P.) front calipers, rotors, air bags, Timbren jounce springs, wheels, shocks, and rear sway bar. I've also switched to Mobile DelVac transmission fluid using the Hoot method at just before 200k. Even the hubs and steering components are original.
Last edited by Nitro Junkie; 01-10-2020 at 12:18 PM.
Reason: To be more inclusive.