Quote:
Originally Posted by BADSAM
Thanks. That's amazing, they are pretty close to a new suburban then.
With all the gas prices going out of this world I have been thinking about transplanting a 5.3L/4l60e in it.
New subs claim they are getting 20 mpg. My wifes 02 was rated at 17 mpg.
Anybody know what the difference is? Programming? Rear gear?
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We have an 03 and it will get almost 20 mpg on the hwy (93 octane and hypertech tuner). Are you sure about the weight of your suburban, I was thinking it was close to 6K? I'm putting a 06 5.3/4L6E in my 69 Burb. I hope it gets close to the same mileage. I think the new Suburbans are rated higher because of the DOD (displacement on demand).
R/