Quick question regarding 92 octane ethanol free gas.
I buy it from a local specialty fuel place to run in all my pressure washers chainsaws weedeaters etc etc
I know it is best for all the small carbs and moving parts of fuel supply in small engines.
I am thinking about my upcoming tow of my 20 foot cargo trailer end of this summer headed back east to Ohio.
I live near Seattle so about 2 hour drive east is the Cascade mountain range I will be crossing on I-90.
My question is: Can I help my rig pull more efficiently going over the mountain pass by fueling up with the 92 octane ethanol free gas ?
I use 87 octane always from Costco. Will the higher octane rated gas give me a slight performance boost for the stressful tow up a mountain pass ??
May use the same strategy going over the Rockies.
octane needed is always a hard question, so many veritables but which engine do you have? I hear the 6.2 is recommended to run 93 all the time. the 5.3 being tuned to run 87. both should be have their tow ratings from the manufacturer using the fuel grade they recommend. but that was 100k miles ago, or whatever you have on yours. at that point you might have carbon build up and stuff making the higher octane reduced knock chance.
I recently towed with my 6.0 that's rated for 87 from tx to FL, 1000 miles and just ran 87, car and trailer being right around the max tow rating. but it's mostly flat land, my next trip will probably be into the NC mountains. for that I'll have my tq app up with knock and retard showing. if I see it pulling any timing I'll fill it with 93 at the next stop.
at the end of the day, it's probably not needed to to avoid damage like the old days, but it can't hurt if you have the money and I have noticed the price differences between 87 and 93 is getting closer at least here. it used to be 10 cents more between grades back in the day, but then got up to over a 1$ between 87 and 93. gotta be price gouging at that point. no way it's legit cost of refinement.
as for non e92 over e10 93. I'd go with the cheaper e10 93. it is more knock resistant than 92 with less e. plus e burns cooler. if you have a flex truck, I'd run e85 all the time. it runs so much better and it's like 100 octane just uses a little more fuel pre mile. why we use non e in small engines is they are mostly gravity feed carbs, the fuel is exposed to air so it attracts moisture and when they sit around all.
the time it gunks up. we have about 15 small Honda engines in different stuff at work, the ones that get used daily, it's never a issue the one's that only get used randomly do need the main jet poked clean if we don't go pick up the small engine fuel for them, or if we get a new fueler that just takes it on their self to fuel everything with a tank lol. but yeah e runs fine in small engines too if you used them non stop like your car but same with a car. don't run e85 and park it in the garage for a month. it cloggs injectors, but they said running on it cleans carbon off pistons like crazy. you can pull a high mileage e85 car engine apart and it's. spotless inside.
I'm sure that didn't help at all lol.
