Improve Gas Mileage 5.3 Vortec
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I always get asked what the fuel mileage on my truck is. So this video we go over and how can achieve such. I always get asked what the fuel mileage on my truck is.
The back pressure myth has worked for me last 2 weeks with gains of about 4 5 mpg. So this video we go over and how can achieve such. Just bolts behind catalytic converterschevrolet 48l/53l.
In fact, its multiple times a day. The back pressure myth has worked for me last 2 weeks with gains of about 4 5 mpg. In fact, its multiple times a day.
