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GMC Sierra Gas Saving Products

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Latest Customer Reviews

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Tom cat

Reviewed By Thomas M (Bardstown, KY) Reviewed for a 2008 GMC Sierra —7/12/2017 9:17 PM

It helps a lot but it is overpriced

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Reviewed By William D (GARDINER, NY) Reviewed for a 2015 GMC Sierra —7/12/2017 4:55 AM

Great product.

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Works great

Reviewed By Kevan C (Hagerstown, MD) Reviewed for a 2012 GMC Sierra —7/5/2017 2:02 PM

Bought a pre-owned Sierra 1500 with the Vortec 6200 where the previous "computer" calculated MPG was 10.2 average. I cleared the computer, installed the MPG default tune with firm shift. With 2 tanks of regular 87 octane I now get overall "computer" average of 16.7. I will hand calculate at next fill-up.

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