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Octane is used to reduce pre detonation in high compression engines. The rating tells the driver which fuel to purchase and use in their vehicle as recommended by the manufacture of the vehicle.
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What are the release dates for Talk2DIY Automotive - 1986 Octane Ratings and Electrical?
Talk2DIY Automotive - 1986 Octane Ratings and Electrical was released on: USA: 16 September 2003
What is the difference in gas grades?
The grades gasoline are the different octane ratings, the cheapest gas has the least octane. The lower the octane in the gasoline, the faster it will burn. High performance cars need high octane fuel.
What was the purpose of adding lead to gasoline?
Lead was added to gasoline to inexpensively increase octane ratings and to also help reduce engine knocking.Increasing octane and reduce engine knocking are exactly the same thing, as the test method to measure octane of a fuel is to see when a standard engine begins knocking. The higher compression ratio the standard test engine can be operated at without knocking, the higher the octane of the fuel being tested.
What are the ratings and certificates for High Octane Detonate - 2005 V?
High Octane Detonate - 2005 V is rated/received certificates of: Australia:M
What are the ratings and certificates for High Octane 4 - 2003 V?
High Octane 4 - 2003 V is rated/received certificates of: New Zealand:M
What are the ratings and certificates for High Octane 2 - 2001 I V?
High Octane 2 - 2001 I V is rated/received certificates of: New Zealand:M
What are the ratings and certificates for High Octane 3 - 2002 V?
High Octane 3 - 2002 V is rated/received certificates of: New Zealand:M
What are the ratings and certificates for High Octane Overboost - 2004 V?
High Octane Overboost - 2004 V is rated/received certificates of: New Zealand:PG
Why do you use octane in vehicles?
Octane is a measurement of the combustion process. Most commonly you will see "85 87 91" octane ratings on your average gasoline pump, this of course indicates the amount of octane that, that specific product contains. The only purpose of octane is to resist detonation. What this means is that a higher octane gasoline is actually more stable than a lower rated fuel. When any kind of fuel is subject to high pressure and high heat (just like you'll find on the compression stroke of an average automobile) it becomes unstable and in some cases will spontaneously combust without an ignition source, this is called "detonation" which will make your engine sound like it's "knocking". Vehicles requiring a high octane fuel most often have engines with higher compression ratios which of course cause higher heat and higher pressures. Most common vehicles only require an octane rating of 85, octane ratings of 87 and 91 won't make your car run any better.
What octane does a 1995 Toyota 4Runner need?
A 3vze engine will take anywhere from regular 87 octane, up to 100 octane race gas. However what is your purpose to using higher or lower octane, Using regular, plus, or premium will work well. however higher mile engines would prefer 91 octane!
How do you convert Octane ratings into PSI or is it not that simple?
It's not that simple. To keep things simple, though - use fuel with the octane rating that your car's instruction manual says you should.
Is 87 octane gas as good as 89 or 91 octane gas?
Probably, yes. Gasoline comes with different octane ratings because some engines require a higher octane to prevent pre-ignition ("pinging" under acceleration or on hills). Check your owner's manual. Also, you can experiment with lower-octane (and therefore less expensive) gasoline. If you do not experience pinging with 87 octane gas, then that is all you need.(Technically, a higher-octane gas burns slower than lesser-octane gas, but that is beyond the scope of this question.)
