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Hello all. Stumbled onto this and thought I'd join up. I'm on my 5th suburban and its all I'll ever drive. My current cruiser is an 01 2500 4X4 with the vortec 8.1 engine. I've already put 160K miles on her and haven't done a thing to it. (knock on wood). Anyone on here know about what kind of mileage I should be getting? I'm getting between 8-10 now. Do I need a tune up? I've been told these things can get 12-14. Any comments.

I also saw the sticker from someones 80's model truck on here and have a funny story myself... I have my original sticker too. MSRP around $50K in 2001. Now with gas prices the way they are I'm told shes worth about $10K. Talk about depreciation!

JR
Houston
 

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Welcome to the site. I had heard that the 8.1's get better milage than the previous 7.4's, so I would expect the 12-14 range as well. May be time for that tune-up.
 
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