2024 Z71 mpg .. can it be this bad?

[carsenault300]

Thanks everyone for all the insightful replies.

Never really thought about the different weight on the wheels/tires compared to the RST stock setup.

I'll post an update once we get past 1,000 miles, and see what's going on at that time.

 

[djnice]

Back roads 45-60 mph. Freeway 70-75 mph.

For some people the 6.2 gets better mpg than 5.3. Makes no sense. With my 5.3 I can only get 18 mpg at 70 but I have lift and tires like OP.

 

[jd08]

For some people the 6.2 gets better mpg than 5.3. Makes no sense. With my 5.3 I can only get 18 mpg at 70 but I have lift and tires like OP.

Our Tahoe 6.2L is stock, so that helps alot. And try to not to have a lead foot.

Once I put the heavier winter tires and wheels on it does go down 2-3 mpg. Plus winter blend gas doesn't help.