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Showing results 1 to 1 of 1 Search took 0.00 seconds. Search: Posts Made By: Jonesy

Forum: Lounge 06-17-2022, 03:06 PM

Replies: 21 2022 Chevrolet HD Duramax Views: 8,138 Posted By Jonesy Geez, I have a 2020 GMC HD2500 with 6.6 gas and I... Geez, I have a 2020 GMC HD2500 with 6.6 gas and I love it. It looks like Im getting sbout the same MPG (14 and 17-18 HWY) as the 2022 Duramax. It says my best mileage was 19.6 for 50 miles. The...

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