 Octane rating. |
 Sep 12, 2010 - 10:42 PM
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Enthusiast  Joined Jul 28, '10 From Wrentham, MA Currently Offline Reputation: 0 (0%)  |
i was wondering what people used for gas in their cars octane wise for a 5sfe, ive heard that it really doesnt matter especially with a stock 5s and i noticed a few posts of people saying they use 91 but i assume those were on swaps and cant seem to get to the bottom of this..
what the hell does it matter? lol and what SHOULD i use? thanks for any input to put my mind to rest =D |
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Sep 13, 2010 - 2:30 AM
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 Enthusiast Joined Jun 2, '10 From Davenport, Florida Currently Offline Reputation: 0 (0%) |
a stock 5s in the US will run the same on 87 octane as it will on 93 octane the only difference will be how much you pay
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Sep 13, 2010 - 6:12 AM
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 Enthusiast Joined Mar 8, '08 From Orlando, Florida Currently Offline Reputation: 14 (100%) |
QUOTE (b22ri22an @ Sep 13, 2010 - 3:30 AM)  a stock 5s in the US will run the same on 87 octane as it will on 93 octane the only difference will be how much you pay 
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Sep 13, 2010 - 1:28 PM
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 Moderator Joined Jun 29, '08 From Denver Currently Offline Reputation: 59 (100%) |
QUOTE (samir0189 @ Sep 13, 2010 - 6:12 AM) QUOTE (b22ri22an @ Sep 13, 2010 - 3:30 AM) a stock 5s in the US will run the same on 87 octane as it will on 93 octane the only difference will be how much you pay x2. HectortheRican is exactly right. Octane rating is a measure of the detergents used in the fuel. A high compression engine can detonate the fuel when the piston compresses the fuel in the cylinder, BEFORE the spark plug actually ignites. You don't want that to happen. So with a high compression engine/turbo engine, you need a higher octane fuel to ensure that there is no detonation before ignition (knocking.) With the 5S-FE or 7A-FE, you have an economy engine. Not a high performance engine. You're literally throwing your money away by pumping premium. Your car will run exactly the same on 87 as it will 100+. Thinking that your car has more power or that you are getting better gas mileage simply because you pumped 91 is nothing more than the Placebo effect. However, for those of us with the 3S-GE BEAMS engine or the 3S-GTE, there really is a need to pump 91+. It will resist knocking and avoid costly engine damage. Not all fuels are equal though- if you have the chance, pump fuel from a top tier station. If there's a no-name gas station on one side of the street selling fuel for $2.75/gal and a Shell on the other side of the street selling the same octane fuel for $2.80/gal, pump the Shell. No questions asked. Top tier fuel truly is better. Links to read and learn from: Top Tier Fuels. Car and Driver- Regular vs. Premium. -------------------- "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others labored hard for." -Socrates. Even Socrates told us to use the search button!
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Posts in this topic
zakinabox Octane rating. Sep 12, 2010 - 10:42 PM
HectortheRican For bragging rights, 91+
For financial smartness, ... Sep 12, 2010 - 10:56 PM Johnnyny cheap gas is fine Sep 12, 2010 - 10:56 PM dudeofchaos Shell V-Power or run outta gas, nothing else goes ... Sep 12, 2010 - 11:01 PM 4-eyed-freek dont you have to use 91 if you advance or retard y... Sep 12, 2010 - 11:03 PM
HectortheRican QUOTE (4-eyed-freek @ Sep 12, 2010 ... Sep 12, 2010 - 11:09 PM monkey_matt 99+octane, altho that is in the UK, on a Jap impor... Sep 13, 2010 - 1:44 AM Stambo i run 93 but that is because i have a 3sgte Sep 13, 2010 - 1:41 PM cyberblader1130 Im not sure on the octane rating, im guessing its ... Sep 13, 2010 - 3:22 PM |
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