WebMar 29, 2014 · It depends on the car. Ethanol free will always be better than 10%. Some brands use less ethanol in their 89 and 93 so that leads to better MPG. Also 87oct is 85oct + 10% eth, 89oct is 87 + at most 10% E. The better base of 87oct pure gas, or just less E to make it 89oct can lead to better MPG. WebFeb 20, 2024 · In both cases, the higher-octane fuel would be a plus. The Ford Focus ST owner’s manual lays out the advantage in black and white: 252 horsepower on 93 octane and 243 horsepower on 87 octane. “If this is a linear difference, that would put 91 octane making 249 horsepower,” says Zachary Santner, technical specialist at Sunoco Race Fuel. ceu start of classes 2022 to 2023 WebNov 4, 2024 · Regular fuel is 87 octane. Premium is 91 or 93. Midgrade falls somewhere in the middle, often 89. To understand what octane means, we first have to look at the concept of preignition. Engines compress a mixture of air and fuel and ignite them with a spark. Under certain conditions, the fuel-air mixture can ignite early. WebPure gas (ethanal free) is definitely better. But 89 with ethanal shouldn't affect it all that much. They being newer will be designed to take ethanal blends. But to my knowledge 85 is a flex fuel. And I don't think any 4runner is a flex fuel equipped vehicle. ceuta cf twitter WebAug 31, 2024 · I run 90 ethanol free fuel in my 2 and 4 strokes. If I run 93 with ethanol in my 250 2 stroke I get a rattle noise almost like the power valve is flutter at high rpm with … WebDec 21, 2016 · Regardless, with my truck, I notice an obvious performance loss when running 87 vs 93, but noticed no difference in running ethanol vs. non-ethanol (other than the pain on the wallet) for 87 in both gas mileage and performance. I have both 87 and 93 non-ethanol available to me (in addition to the 10% ethanol mixes) and for the most part … crown dental x ray WebNov 4, 2024 · This is our 2016 Twin Turbo V6 Dodge Challenger on our in house dyno running both 93 octane and E85. Same vehicle, same boost pressure, but a significant …

WebBut, unless your bike is knocking on 87 octanes, it’s not going to run any better or make any more power on 89 or 93 octane gas. On the flip side, if you’re thinking of going cheap and putting regular in a bike designed to burn premium, well, here’s another look at those wrecked pistons. WebNov 11, 2024 · You might get 87 ethanol one week that is less than 10% and then the next week it is above 10% because the seller is just trying to get the cheapest gas they can for … ceuta ap world history Web89 91 without ethanol 93 with ethanol Premium gas must be at least 93 octane if it contains 10% or more of ethanol Maryland: 87 89 93 Massachusetts: 87 89 93 Michigan: 87 89 93 85 and 86 octane may be sold if labeled as subregular: Minnesota: 87 89 91 110 octane fuel may be available at certain locations in southern parts of the state ... ceuta fc twitter WebNov 23, 2016 · The common fuel ratings (87, for instance) refer to the composition of gasoline. 87-octane gasoline is comprised of an 87 percent blend of isooctane and 13 percent n-heptane, or a blend that's ... WebEthanol is also corrosive and burns really hot, which can cause overheating and irreparable damage. It’s best to use ethanol-free gas in small engines. If you do decide to use ethanol, don’t use a fuel that is more than 10% ethanol (E10), and be sure to add fuel treatment to prevent the fuel from separating. ceuta fc soccerway WebMay 25, 2013 · I normally run 93 octane 10% ethanol in my 6-speed R/T, but I'm thinking of trying the 90 octane ethanol free gas to see what the mpg difference is. It's .25 cents …

WebMar 15, 2024 · The higher the fuel octane rating, the less noise will be noticeable on combustion. Additionally, octane levels also reflect the fuel’s burn-rate. Regular 87 fuel burns slower than Premium 91 fuel, which will burn hotter and create more combustion. This is why most day-to-day cars can be filled with regular unleaded, while performance ... ceuta fc table standing WebJun 25, 2013 · twotone June 25, 2013, 8:31am #2. Measure your gas mileage over the course of two tanks of 87 then two tanks of 90. Compare the difference in mileage to the difference in cost. My guess is that it won’t make much of a difference. A 2003 car will run fine on both fuels. ok4450 June 25, 2013, 8:41am #3. crown dentistry arlington