Thread: Fuel choices

Originally Posted by "D"

87 E10 in my Yamaha SHO 200 since new in 2012. Manual says its okay. 350 HRS, no problems. I typically mix 87 and 93 octane in my 2020 RAM Hemi. Get 2 mpg better than just 87 octane. All yard tools, weed eaters, 52 inch gravely, push mower, tiller, pressure washer and generator all get 87 E10. All these are 5 to 10 years old. No problems. Also use exxon when I can. As a retiree I get a discount.

The extra octane in the Hemi is reducing the Knock Sensor readings so your computer is allowing for a more advanced Ignition Timing. My 2001 Silverado 2500HD looses about 20% of the rated HP because of that knocking from E87. I put E93 in it and I feel it's got a Turbo at times.