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Old 02-06-2018, 01:25 AM   #1
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Does fuel additives or something similar like that really works?

Hello everyone I would like to ask whether or not fuel additives from STP, caltex etc really works to improve fuel consumption?
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Old 02-06-2018, 05:54 AM   #2
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Welcome. I tried a few tankfuls adding Redex Petrol Treatment. Didn't notice any improvement in fuel efficiency.
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Old 02-06-2018, 07:14 AM   #3
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Depends what kind you use, an octane booster should have the same effect as using premium fuel as you're just increasing the octane number. I know some people who use an additive every tankful of diesel just to keep the injectors from clogging up, but octane boosters are different.
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Old 02-06-2018, 07:19 AM   #4
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The octane boosters only lift the value by a little amount per bottle. If you want higher octane, just get the higher octane fuel.

If your fuel system is gunked up, you might see an improvement if the additive cleans it up. Otherwise, they aren't going to help any more than a quality gasoline.
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Old 02-13-2018, 04:27 PM   #5
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In truth, ethanol is an additive to 84 octane 100% gasoline(E0), making 87 octane, E10. Since, E0, in my last five low compression ratio, 87 octane engined cars, gave 8% ,8%, 7%-8%, 7% & 6% better MPG, ethanol isn't functioning properly. Also, some vehicles, burning E0, gave excellent emissions tests.
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Old 02-14-2018, 12:15 AM   #6
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I use Techron on my truck and it works great. I get 2-3 more MPG's.
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