KLUG'S SS

iTrader: (6)

I've got a 160 t-stat in my 03SS and I have heard alot of things good and bad about running a cooler t-stat on these newer engines. My gas mileage really blows and I am wondering if maybe the 160 stat is hurting me and I do live in Michigan so it is cold here alot. Just wondering if anybody has any opinions on this. It also seems like it ran a little stronger with the stock stat.

04BlackGmc

iTrader: (18)

Ok well yes it going to hurt the gas mileage. I'm still new to this truck thing, but in my bird when it got cold outside and i had my 160 T-stat it took FOREVER to warm up. Ever try a 180?

KLUG'S SS

iTrader: (6)

It does seem to warm up fairly quick and on my scan tool it reads that my engine is running at 170 I am thinking that might be a little on the cool side. I have been taking it really easy on this tank of gas and I am still only averaging 12.5 mpg which sucks *** and that isn't even city driving.

2004SSS

iTrader: (25)

12.5 thats sucks i get that when im on the gas non stop, but i am pretty much stock.I was also interested in this same question.What do our trucks come with stock?

04BlackGmc

iTrader: (18)

should be around 192/195.But i could be wrong.

KLUG'S SS

iTrader: (6)

Yeah, you are right it is a 195.

04BlackGmc

iTrader: (18)

Cool i thought so, Most every automobile comes with a 192/195.

KLUG'S SS

iTrader: (6)

You got that right it is a bunch of bullshit! I don't have anything really extreme done to it just a cam,springs,headers etc......... supercharger coming soon though. Most of my trips are at least 20 min or so with the cruise on so I should at least see 14 or 15 I would think. Something isn't right.

KLUG'S SS

iTrader: (6)

It is a 5300 pound truck with 4.10 gears so I guess I shouldn't be bitching about it that much.

04BlackGmc

iTrader: (18)

And AWD and the 6.0