Which gas for the 6.2L

[totheyard]

Thats like saying why pay more for a Denali when a regular Yukon is ok?

LOL...

You do it because you can afford to treat your baby right! Give her the Heineken, not the Pabst Blue Ribbon!

Yeah I guess your right! But I can get pretty shit faced for cheap on some Pabst!

 

[purple 'hoe]

Don't take the dealers word on everything they tell you. This is coming from someone who works at a GM Dealer

If something is "recommended", then it's usually what they want you running for fuel. I'd run 91+ if it was me.

 

[felixgun]

Thats like saying why pay more for a Denali when a regular Yukon is ok?

LOL...

You do it because you can afford to treat your baby right! Give her the Heineken, not the Pabst Blue Ribbon!

Um PBR is delicious...

 

[downforce137]

http://www.economist.com/blogs/babbage/2012/09/octane-ratings?test=babbage

To sum up, if the car’s handbook says that premium petrol is “recommended” (rather than insisting it is “required”), then the engine will automatically adjust itself to run smoothly on a lower octane fuel. Because of the retarded ignition, the engine will, of course, produce less power, and have slightly higher fuel consumption. But the poorer fuel economy is likely to be outweighed by the savings at the pump.

 

[blkonblk]

Um PBR is delicious...

X2

 

[totheyard]

Thanks Chris!

 

[07Denali]

I prefer Schlitz. I run 87 in my 2012 Denali and it has what almost sounds like a lifter tick or small exhaust leak. May be some ping. I am going to try mid grade (89) fuel and see it gets any better. Any "loss of performance" I would assume is negligible and will still have more power than the 5.3 in the tahoe we were looking at.

 

[stevek]

If it lowers my economy by 1/2mpg, it's cheaper to put in premium than buy the extra gallon

 

[rosendo192000]

2.50 more per fillup or 2,500 in repairs ? mmm Yeah ...

 

[skippy737]

Nothing but premium for three years, whats and extra .20/ gallon or $5.20 a tank.
We buy these vehicle for everything BUt fuel economy