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Peugeot 406 (2001) do I use 91 or 95 Octane - 1996 Hyundai Accent

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How do I find out what is the best ctane for my 407 sw petrol 2.0


cleaner fuel better power quicker acceleration car runs hotter ive tried it in my car its more expensive but had noticed a better on mpg

Apr 15, 2013 | 2007 Peugeot 407 SW

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Octane Myth


What is octane? Octane cannot be seen, but it is of utmost importance when it comes to gasoline. One thing for sure, higher octane fuel costs more. Allot more! Simply put, octane is a measure of gasoline's ability to resist detonation, which you hear as pinging and knocking in your engine. The higher the octane the more the fuel can be compressed without detonating before you want it to. Detonation, ping, knock, whatever you want to call it, occurs when the air/fuel mixture ignites before the spark plug fires. The mixture ignites from compression and not from the flame of the spark plug. In other words, the higher the octane the less likely it is to ignite prematurely. The only benefit to a high octane fuel is that it allows an engine to run at a higher temperature and with a higher compression ratio without pinging. Higher octane fuel does not provide more energy, more power, better mileage, more torque, burn cleaner, clean your engine, and is not better for the environment. If the engine is pinging when using the correct octane fuel, then it may be necessary to move to the next higher octane to prevent pinging, and damage to your engine, unless there is another problem. If you are using higher octane fuel for any of these reasons, STOP, you are throwing your money away. Also, never use a lower octane fuel than is recommended by the manufacture. If the manufacture recommends 89 octane then use 89. If they recommend 87 then use 87. The key is what was the engine designed to run at to achieve optimum performance and mileage? One exception is when you are towing a heavy load with a vehicle designed to run on 87 and you experience pinging. In that case it may become necessary to switch to 89 while towing. In conclusion, race car engines are designed to run on high octane fuels due to their high compression engines. You cannot make your engine a race engine just by upping the octane. Save your hard earned money, and use exactly the octane you need.

on Jun 19, 2010 | Honda Accord Cars & Trucks

3 Answers

Been using 87 octane in '02 maxima for 1yr. have replaced oxy & nkock sensors. Is this due to low octane?


Ok the 2002 Maxima 3.5 requires premium fuel 91 octane. According to the owners manual for optimum performance use 91 octane, you can use 87 octane unless you get pinging sounds. Sounds like you just need to use the proper octane. Occasionally I will run regular 87 and can really feel a loss of power. When I use 91 octane the car is a rocket ship.

Sep 19, 2012 | 2002 Nissan Maxima

2 Answers

Does the 09 es350 need 93 octane gas or will it run on 87 octane


you should have a factory affixed sticker inside gas compartment cover listing premium fuel only or also listed in your owners manual. Otherwise if you notice that you're vehicle is making a pinging sound while accelerating or climbing a hill for instance then you may want to step up to 89 or 93 octane and try to avoid purchasing fuel with ethanol added it's **** and degrades your fuel quality/octane ratio

Dec 23, 2010 | Lexus ES 350 Cars & Trucks

1 Answer

Developing a ping... not bad gas, low miles


It may not be bad gas, but it could be the wrong octane rating for that engine. Check your owner's manual and see what octane is recommended for that engine. If you're running 87 octane and it requires 91 or higher octane, then you need to be running the higher octane fuel. By running lower octane fuel in an engine that requires higher octane, your getting pre-ignition, the knocking sound you hear. What's happening is that as the piston moves up on the compression stroke, the gas/air mixture is compressing and as the pressure goes up, so does the temperature of that mixture. It's possible that temperature can get so hot that the gas/air mixture ignites from the high temperature and not from the spark plug. Higher octane fuel will help this since higher octane fuel is harder to ignite. I say try running some 92 or higher octane fuel in your car and see if you still hear the knocking.

Jun 06, 2010 | 1986 Lincoln Town Car

1 Answer

Im curious about octane in fuel and what it does. I have a Nissan 350Z that requires 91 octane. Now if I were to put 94 or higher, would it improve performance or fuel efficiency at all or is it just a...


Octane is an added ingredient that burns more efficently than gasoline..use the 91 octane rating that your owner's manual specifies. Lower octane will degrade performance, higher than 91 is wasting money because it has more octane and is more expensive, but does not improve performance.

Jan 09, 2010 | 2005 Nissan 350Z

1 Answer

Which kind of fuel should i use for my corolla 2003 se?


not sure what octane your useing but but if your useing lower octane try useing higher octane and if your useing higher octane try lower octane gas the gas pump will say the octane rating

Nov 08, 2009 | 2003 Toyota Corolla

1 Answer

My Peugeot 206 has a rattle


Sound like pre-ignition problem. pre-ignition is caused by running too low an octan fuel in the engine. The way octane works is simply the lower the number the faster the burn. If the fuel burns before the piston gets to the proper position in the cylinder it can cause what is call in the industry a ping. The remedy is to use a highert slower buning octane fuel or change the ignition timing. Mind you some engines with higher compression may not like the lower octane fuel even after adjusting the timing.

May 05, 2009 | 2005 Peugeot 405

1 Answer

Octane


87 octane is what your car is built to run on. Anything higher is throwing your money away. A lot of people are under the impression that higher octane is 'good' for their car, when it does nothing but empty your wallet quicker. Of course, there are many cars requiring higher octane than your civic, they are engineered to run at peak performance and efficiency on higher octane (Acura vehicles for example). So enjoy your civic and and the $ u save on 87 octane!

Oct 15, 2008 | 1992 Honda Civic

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