Questions & Answers for: Lexus what fuel octane

...fuel. I re-filled with 95 octane, it seems that the engine generates more heat when using 95 octane. I have to turn on the heater, set at 27degC or above, fan speed at no. 1, then the rattling noise ...

fuel do i use in my 1995 Lexus GS300 I believe it calls for premium unleaded 4 CYLINDERS USE 87 AND V6 91 OCTANE.NOW CHECK YOUR FACTORY MANUAL.TO MAKE SURE.IF YOU RUN 91 OCTANE.IT MAY RUN POORLY.CHECK

...octane fuel and adjust the program to match. Spark is retarded to accomodate the lower octane fuel's disposition to predetonation. You will lose a little performance, but not much. i hope this helps ...

...octane fuel as it burns better and you get a few miles more per tank,94 octane is not as good and usually you can smell the difference from the tail pipe,use brand name eg;mobil or Shell Bp not ...

Fuel selection: Select premium unleaded gasoline with an Octane Rating of 91 (Research Octane Number 96) or higher for optimum engine performance. However, if such premium type cannot be obtained, you

do i have to use premium gasoline? do i have to use premium gasoline or can i use 87 octane? you can use 87 octane, And you will actually get better fuel mileage

...both be down with lower octane fuel, so do not use it all the time. usr 87 octane found at most pumps as regular, higher octane will not benefit you in any way unless you live in a high altitude ...

fuel quality/octane ratio Octane is a chemical that is added to gas to make it less explosive. The reason for this when the piston inside of your engine compresses the fuel air mixture, it can explode

octane gas? I have about 158,800+ miles on my 92 Lexus LS400 and for about maybe 12+ years i dont think i have ever put any other gas in but regular....i am ashamed to say this but hey with gas prices

...mass air flow changed same problem Bad fuel (water, too high octane, dirt, etc.), dirty fuel filter, air leak in system (fuel, vacuum) , too low octane, dirty fuel injectors are some