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Old 01-24-2021, 07:34 PM   #80 (permalink)
JSH
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Join Date: May 2009
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Adventure Seeker - '04 Chevy Astro - Campervan
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Quote:
Originally Posted by aerohead View Post
If the GVWR is around 6000-6500-lbs, the automaker is not required to list mpg on the window sticker.
We do know from the past, that GM does have internal data which was shared by Popular Science in the early 2000s.
Correct, that why I was hoping someone had found a spreadsheet with all the CAFE certifications. I've found the EPA emissions file tucked away but nothing on CAFE yet.

GM stopped publishing mpg ratings for the 4.3L V6 engine in 2014, the 4.8L V8 engine in 2015, the 6.0L in 2017, and has never officially published numbers on the 2.8L diesel.
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