6.6L Duramax Deisel
Good engine? What's your experience?
Forum Discussion
NHIrish wrote:mockturtle wrote:
Thanks, all, for the valuable input.
Be careful as some of it wasn't so valuable.
The duramax is a very good engine. Some model years had issues with one thing or another, just like others. All diesels (all engines) are water sensitive and both Ford and Chevrolet are using injectors designed for European spec fuel, which is of higher quality than US fuel. As a result, there are some injector and hpfp issues due to a lack of lubricity...and some people (like me) try to avoid issues by using fuel additives.
None of the big three is bad, all have an issue or two here or there and some are more prone to certain issues than others. When considering what to buy, look at the whole package and buy what works best for you in terms of engine, transmission, payload etc etc.
3 sets of injectors so far on mine, in first 100k (including originsls) one done under warranty. When number 3 came up, the independant Mechanic recommended a FASS lift pump double filtration system to avoid this 4000 dollar job from having to be done again anytime soon. it removes water, vapour and particles down to 3 microns. The standard filter is good for 8-10 microns. The injectors are not rated for particles that big. He also said I will notice a boost in mileage.
Opti-lube XPD is better for lubricity than stanadyne. After using Stanadyne since new, I am going to try a switch.
study
This is also informative. I hope I have saved somebody else from a large repair bill.
duramax injector myth
