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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: 2021 Civic: Octane / Wheel Size Relationship? | 22Relevance | 5 years ago | Doc | Submit Your Question HERE | |
| By way of explanation; If you put larger tires on the vehicle, you effectively change the final drive ratio higher (lower numerically) putting more load on the engine at a given speed thereby necessitating higher octane. If you put smaller tires on the car, you effectively change the final drive ratio lower (higher number) and need less octane to achieve the same result, there being less load on the engine. | |||||
| 2021 Civic: Octane / Wheel Size Relationship? | 22Relevance | 5 years ago | Pork Chop Sandwiches | Submit Your Question HERE | |
| 🤠 Scotty! My buddy's 2021 Civic's manual states that if the car is equipped with 18" or 20" wheels it requires '91 octane or higher... but if it has smaller wheels, then '87 octane is just fine... what gives?!? 🤔 | |||||
| RE: '08 Honda Fit w/ 206k synth oil change intervals? 93 octane. Man trans drain/fill. | 22Relevance | 5 years ago | goatbelly | Submit Your Question HERE | |
| Thank you very much. The 93 octane only adds up to $8.55 a mo. more being a Costco member. Their fuel is on average $.50 less per gal than all others and carry 87 and 93 octane only. | |||||
| RE: '08 Honda Fit w/ 206k synth oil change intervals? 93 octane. Man trans drain/fill. | 22Relevance | 5 years ago | goatbelly | Submit Your Question HERE | |
| Thank you very much. The 93 octane only adds up to $8.55 a mo. more being a Costco member. Their fuel is on average $.50 less per gal than all others and carry 87 and 93 octane only. | |||||
| Midgrade with Octane boost vs Premium | 22Relevance | 5 years ago | Tyrell | Submit Your Question HERE | |
| Hey Sir Scotty, can Mid Grade Gas with octane boosters be an equivalent Premium Gas? I have my eye on an 2007 Acura TL Type S that require Premium gas but if I could use mid grade with octane booster instead with no issues then great. Thanks in advance | |||||
| Answer to: Octane boost vs premium gas | 22Relevance | 5 years ago | BruceREE | Submit Your Question HERE | |
| If your car be recommended to take 93, then go 93. From what I understand, almost all fuel cleaners and octane boosters are more akin to snake oil except a very limited few. Most of the commercial ones that you can buy off the shelf fall under this category. Since you bought a car with required 93 you are barred from going lower if you want to preserve the car decently. Modern computers can auto correct and all that, but not for long and especially with a turbocharged engine you would want to use the highest octane pump gas available. Short answer:No it is not if you want to give your car the best chance of surviving longer. | |||||
| Answer to: Higher octane gas any better for direct injection | 22Relevance | 5 years ago | Razmig Bartassian | Submit Your Question HERE | |
| If it's turbocharged, then yes, higher octane gas is better and even recommended. If it's not, then you'll see no benefit. octane rating has nothing to do with carbon build-up or carbon cleaning. | |||||
| RE: Is it okay to mix gasoline? (Car requires regular octane 87) | 22Relevance | 5 years ago | Razmig Bartassian | Submit Your Question HERE | |
| @mountainmanjoe Yeah they mentioned that the owner's manual states 87 octane or higher...so really there's no problem pumping in 87 octane. | |||||
| 85 octane fuel? | 22Relevance | 5 years ago | DuffMan | Submit Your Question HERE | |
| Hey Scotty, I recently moved from the Midwest to the Rocky Mountains. Out here, regular fuel is 85 octane. They claim you can use it instead of the 87 recommended by the manufacturer because it burns differently at higher altitude. Is this true? I've stuck with 87 octane, which is sold as mid-grade here, because that's what Toyota recommends. | |||||
| 2009 Acura TSX can I fill with 87 octane fuel | 22Relevance | 5 years ago | AlexW | Submit Your Question HERE | |
| I have a 2009 Acura TSX 4 cylinder with 75,000 kms. The owners Manual said the car can only use 91 octane. Will the computer compensate if I use 87 octane or will I damage the engine? | |||||
| Type of gas for 2008 lexus es 350 | 20Relevance | 2 years ago | mystic192 | Submit Your Question HERE | |
| Hi I have an 08' lexus es 350 with 164k miles. The owners manual and gas cap says to use premium 91 octane and above. I have seen online however many people say they always run 87 octane, so I thought I'd ask here to hear people's opinions on it thanks. PS I have been using 91 octane as I'm scared to blow something up but if possible I'd like to save the money. | |||||
| Answer to: "Modern cars" | 20Relevance | 2 years ago | Dad2LM2 | Submit Your Question HERE | |
| Welcome new member. that phrase can refer to a lot of things, depending on the topic. For octane rating, he means that “modern cars” can adjust the air/fuel mix to minimize pre-ignition (knocking) with low octane gas. That’s not a singular year that everything changed. It’s a relative and multifactorial assessment. But safe to say that for a 90’s car, you shouldn’t go below the manufacturer recommended octane rating. | |||||
| Answer to: Type of Fuel for Mazda CX5 | 20Relevance | 2 years ago | scottykilmer | Submit Your Question HERE | |
| Well actually it should run perfectly fine on normal gas. It would just have a little bit less power. Realize octane booster to actually boost the octane with cost you more money than buying the high test cuz she'd have to buy tons of those expensive bottles to make it go up that many points of octane | |||||
| Answer to: Premium Fuel Required? | 20Relevance | 2 years ago | Kaizen | Submit Your Question HERE | |
| Like @chucktobias said, it is best to use the fuel octane rating stated in the owners manual. With that said, I have a sneaking suspicion that the way Lexus and Toyota get more HP from essentially the same engine is through fuel. I mean, it kinda make sense, because the more premium and performance brands like BMW require higher octane fuel. My biggest concern with going back and forth between regular and premium is how much damage will the engine receive. The knock sensor can help adjust to the fuel octane rating, at the same time, knock isn’t good for an engine. | |||||