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Old 11 Jun 2009, 05:01 pm
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Default I am looking at a 2006 Acura TL that recommends using 91 octane. Can I run it on 87 or 89 without...

...engine harm?
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Old 11 Jun 2009, 06:01 pm
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It won't harm it if you do it sometimes but over the long term, it will hurt your engine, and as soon as you get onto the road and stomp on the gas, you'll realize that there's a difference.For the extra $1-2 you'll pay at the pump when you fill it, it's worth it, trust me.
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Old 11 Jun 2009, 06:16 pm
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I own a 06 acura tsx, bought new 11/06. I use 87 Octane gas, with no problems or any notice in power loss. I get excellent gas mileage. My car now has almost 85,000 problem-free miles. I previously owned two other cars, that recommended (not required) premium. When we sold them, our 91 mazda mx-6 GT had 250,000+miles and our 98 eagle talon TSI-AWD had 125,000+miles. They both had their original turbo's, engines, clutches, transmissions and ran excellent.I did try using premium gas for 2 months in my tsx-no noticeable improvements except to pay more at the pump.
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Old 11 Jun 2009, 06:31 pm
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Just buy the gas recommended for your car, that's what the engine was designed for. Your ecu should change to reflect what gas you've put in, but you should still use the recommended fuel. Plus, you'll get a cleaner burn and better gas mileage with 91.
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Old 11 Jun 2009, 06:46 pm
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IT WILL NOT HARM your engine to run a lower grade fuel,acura only recommends it for optimum performace reasons,it is a good idea to put some fuel injector cleaner in it a few times a year this is for all cars not just your acura. honda/acura certified tech 11yrs.
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Old 11 Jun 2009, 07:01 pm
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It won't harm it if you do it sometimes but over the long term, it will hurt your engine, and as soon as you get onto the road and stomp on the gas, you'll realize that there's a difference.For the extra $1-2 you'll pay at the pump when you fill it, it's worth it, trust me.Source(s):S2000 owner.
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Old 11 Jun 2009, 07:16 pm
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NO. NEVER. YOU WILL NEVER HAVE PERFORMANCE. YOU WILL SOUND LIKE A LAWN MOWER. YOU NEED 93 OCTANE WITH BOOSTER. TILL YOU FIND THE PRICE AND STORE THAT HAS 91 OCTANE. SOUND OF 1 FOOT THEN REST. STEP REST. MIGHT SAY DIFFERENT. PISTONS AND SPARK PLUS SOUNDS SAY WE WANT MORE SOLID PERFORMANCE.
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