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Keith Richards
12-03-2004, 16:21
Just wanted to share my mpg records with reg. oil vs synthetic.Ive never used a synthetic oil before this,but after recently hitting the 120,000 mi. mark on my truck,I thought it would be a good time,mainly for the cold weather benefits.I was happy to get the highest mpg reading yet.I was consistanty getting between 14-16 mpg unloaded,and this time got 17,stop and go traffic,nonetheless.Some of you guys may laugh at those numbers,but it is a 4.10 geared truck,that weighs around 6,300 lbs empty.I'm expecting slightly higher readings on the highway.

dslpwr
12-04-2004, 18:21
Hey Keith

What brand of oil did you use?
I can get about 14 mpg using fuel treatment.

Keith Richards
12-05-2004, 17:53
dslpwr,im using amsoil,which I bought at a local diesel performance shop.It's costly but I'm guessing its a lot better for the engine.It's 15w40.

DILLIGAFRI
12-08-2004, 06:52
98 K-1500 4wd I get 17mpg city and almost 21 on straight highway. Ran better after I pluged the egr