The biggest differences between the 5.3 and 6.2 GM engines

General Motors made V8s with 5.3-liter and 6.2-liter displacements. While they're under the same brand name, there are a few ...
Hot Rod

Gas Mileage With a Punch! 355-Horse 2019 L84 5.3 Chevy V-8 Can Burn E85

The big draw to E85 for gearheads was its 105 octane rating that's no longer posted on the pump. It's been a while since there's been any mention of E85 connected with the new vehicles, but E85 is ...