3/4/2023 0 Comments Mighty car mods grampsI don’t know if your vehicle requires high octane, but if it doesn’t, you are throwing money away… if it does require it and runs better, the only thing I can surmise is that your compression may be lowered to the point where regular fuel runs better… but as I said, this is just a guess.Īfter working in the industry installing monitoring equipment in these tanks I can assure you the filling stations have no desire to sell gasoline with water in it and the suction tubes are approximately four (4) inches from the bottom of the tank to avoid sucking water off the bottom.Īlso, the absolute worst time to fill your tank is when the tanker is there for a fuel dump or just after. Higher octane fuel can be used in a vehicle that calls for regular fuel, but as stated, it is just a waste of money… any benefit is usually psychosomatic in the person who does this… If lower octane fuel is used in a high compression engine, then the fuel explodes before full compression can occur, causing knock and diminished performance. High octane is required in cars which have high compression engines… which is why most performance cars require it… this is where I believe that the misconception starts… Simply stated… higher octane fuel is less explosive (or more accurately, slower burning) than lower octane fuel… which totally goes against what most people’s conceptions are. Higher octane is one of the most misunderstood concepts in cars. im am interested to hear peoples thoughts on this. i am familiar with how different octane fuels have different ignition points and that 95 is more potent than 98. now it appears to start easier but it could be a placebo effect on my behalf. has anyone seen this before that a change in octane allows the car to start or even run a little better. i have done all the basics and double checked everything. now i have been trouble shooting this for a while and im down to having my mechanic check fuel pressure and flow as-well as do a quick diagnostic check when i take it in next. since i have put in the 95 octane i have not needed to give it a second crank it just starts and after 2-3 seconds it smooths out like it would on second start or blip of the throttle. normally i would have to crank it it would cough then die and on second crank it would start easy or i could start it and blip the throttle are it would smooth out. i usually run it on 98 octane (Australia’s top of the range premium) and last fill up i decided to put in 95 octane and i have noticed that the car starts a little easier when cold. not i am not here to ask for help on this but to rather share something i have noticed. my 98 E36 328i has a little trouble starting when first cold. Hi all this is something that i though i might share and see if people have seen this before.
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