Wife's car is spec'd for '93 from the factory.
Tis truly amazing what the government requires from the auto manufacturers and green energy movement forced upon the public always goes against physics and mechanical engineering.Ive put over 600,000 miles in 3 gmc 4x4 trucks 95 with 350, 99 with 350, 2010 with 6.2. What ive learned is every increase change in octane 87, 89, 91, 93 my trucks got better gas mileage, the increased price in each octane was equal to total fuel cost no matter which octane burned.
probably be good for chainsaws and weedeaters to, I always run 91 in mine with the Stihl oil
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