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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: Do all turbos require premium fuel | 26Relevance | 5 years ago | Dad2LM2 | Submit Your Question HERE | |
| ... the fuel (this is how a diesel engine works without spark plugs). Turbos and superchargers pre-compress the air before it enters the cylinder in order to increase the oxygen available for combustion. The problem with using low-octane fuel in older turbo cars is that at the higher pressure, you can get spontaneous ignition before the cylinder reaches the high point of the compression stroke (ie, pre-ignition), which causes knocking and can eventually damage the engine. You can overcome this by using higher octane fuel, which is less prone to pre-ignition. ... | |||||
| Answer to: Supercharged Pontiac GT? & How necessary is premium fuel. | 24Relevance | 5 years ago | Mod_Man | Submit Your Question HERE | |
| If it is a GT and not a GTP, someone added the supercharger to the vehicle. In that case, they likely tuned the car to run premium only. With aftermarket forced induction, premium fuel is an absolute MUST. If it is tuned for premium and you run Regular, you will damage the engine. | |||||
| Answer to: Gas type | 23Relevance | 5 years ago | Whatchamacallit | Submit Your Question HERE | |
| This has been discussed before: | |||||
| Gas type change | 23Relevance | 5 years ago | Dzirlo | Submit Your Question HERE | |
| Just bought a 2007 Mercedes SLK 280. The manufacturer requires premium gasoline, however, the private seller states they never used used premium, only regular. That's 13 years of regular gas with no problems. If I put premium gas in the car now, after all those years of regular, will it ruin the engine? Will it make a difference at this point with HP? Thank you. | |||||
| Do all turbos require premium fuel | 22Relevance | 5 years ago | leaflard | Submit Your Question HERE | |
| Hey Scotty, I just bought a 2021 Kia Seltos sx turbo with 11000 miles on it and have been wondering about what fuel to put in. When I did my research online and looked at the manual it recommend regular 87 octane fuel. But growing up my parents always warned me that turbos require, "the expensive gas",premium fuel. So who's lying to me. My parents or the dealer? Can I really put regular non premium gas in a turbo engine? | |||||
| Answer to: Midgrade with Octane boost vs Premium | 22Relevance | 5 years ago | yaser | Submit Your Question HERE | |
| If it is required, you need to use premium gas. Is there any reason you want to add booster to the lower octane gas and use it instead of premium? | |||||
| Should I use premium gas? | 22Relevance | 2 years ago | Sanders79 | Submit Your Question HERE | |
| Just got a great deal on a 2010 rx 350 with a clean history. Can't believe how smooth and comfortable the ride is. I assumed it ran on 87 but have come to realize that premium is suggested. Been running regular for over a month with no noticeable impact to power or fuel economy. Should I immediately switch to premium or is there anything I should be looking out for running regular? Thanks! Car has 130K mileage. | |||||
| Answer to: revving engine after switching from ethanol gas to ethanol-free gas | 26Relevance | 3 years ago | Justin Shepherd | Submit Your Question HERE | |
| ... to gum up if you don't use it regularly. You also destroy rubber parts if they're not designed for ethanol. The gasoline hardens and embrittles rubber if it wasn't intended for 10% ethanol gas. This is not so for fuel injected engines. Simply using it regularly will keep parts from getting gummed up. Straight gasoline also has a lower octane rating than "gasohol", which means more of a tendency to prematurely detonate as opposed to a controlled ignition. Aviation gasoline is also not just straight gasoline, it's still blended with tetraethyl lead, for ... | |||||
| 2019 Lexus GX460 - Premium or Regular gas? | 25Relevance | 2 years ago | 0226LexGX460 | Submit Your Question HERE | |
| Hi Scotty! I just purchased a 2019 Lexus GX460 with 52,249 miles on it, and I love it. I have fallen down the rabbit hole regarding whether or not I have to use premium gas. After countless forums, articles, and YouTube videos I’ve come to you for (hopefully) a definitive answer, as I’ve found a lot of info on both sides of this discussion. I am not auto-mechanically inclined so don’t know enough to form a good basis for judgement. I’m happy to put premium in this vehicle if necessary as I’d like to keep it a long, long time and have it continue to run ... | |||||
| Answer to: Does my wife's Lexus really require premium gasoline? | 25Relevance | 3 years ago | Dan | Submit Your Question HERE | |
| ... that has a high anti known index, aka premium fuel. Running such a car on regular will probably be fine as most ECUs are able to get the ignition timing retarded enough to allow for poor quality fuel. BUT in case where the engine is unable to retard the ignition enough or reduce turbo performance - your fuel will detonate and your brand new high performance engine may be toast. Do you really want to risk damaging your engine and VOIDING your warranty over what type of fuel you put in a brand new Lexus?? It’s not worth it - just use premium. | |||||
| 2000 Jaguar SType 3.0 starts, then dies | 24Relevance | 4 years ago | SicilyNY | Submit Your Question HERE | |
| 😱My 2000 S Type Jaguar, 3.0 115k mi..recently bought..no service records..looks great inside hood. 8 months all great..filled up with Walmart premium gas..nobody had premium..drove home. 3 days later, got 4 blocks car cut off. Starts then dies...towed home. Now what .water in gas? Debris in gas? fuel filter/fuel pump? No engine light on. Battery lights up everything. Fuel pressure check? Very limited $$ retired nurse/ recently disabled. I need gas tested( can't syphon due to insane gas tank geography) so they need to open fuel line to test gas. Can ... | |||||
| RE: 2019 Lexus GX460 - Premium or Regular gas? | 22Relevance | 2 years ago | Whatchamacallit | Submit Your Question HERE | |
| I have not seen "required for best performance" in manuals. When I was shopping for a Lexus GS it said "Premium gasoline required". My 2000 Acura Integra's manual says "Premium gasoline required". Nothing was mentioned about "for best performance". . OP will have to read his manual and see what it says. | |||||
| Answer to: Putting regular gas instead of premium | 22Relevance | 4 years ago | Mod_Man | Submit Your Question HERE | |
| Always use what is recommended by the manufacturer. If you can't afford premium fuel, you shouldn't have purchased a Mercedes. That's the honest truth of it. You think premium is expensive...go ahead and fill it with regular. And when you have to have the engine worked on for the damage done, you'll learn what expensive REALLY is. As someone who is around these cars day in and day out, I'm telling you: German cars are NOT like their American or Japanese counterparts. They are extremely sensitive, maintenance-heavy machines that have to be serviced and mai ... | |||||
| Answer to: Premium octane gas | 22Relevance | 5 years ago | Mod_Man | Submit Your Question HERE | |
| Not in current times. The regular fuel has the same detergents as premium, just in different amounts. It is, however, true that cars that require premium fuel will have issues if running regular, up to and including engine destruction. | |||||
| Premium octane gas | 22Relevance | 5 years ago | Francesco Savanti | Submit Your Question HERE | |
| Hi Scotty, You mentioned that today's cars will run fine on 89 or 93 octane but engines that are recommended to use premium fuel will have less pick-up. Is it true that premium octane fuel burns cleaner than the low octane and will keep things from getting gunked up? Francesco | |||||