Question about 2006 Lexus Es 330
I want to syphon gas from my ES 330. How can I do it?
Posted by Anonymous on
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Posted on Jan 02, 2017
No, it will do no harm at all. As with the majority of modern engines, the car's engine management system automatically adjusts engine settings (the ignition timing curve via the anti-knock sensors) to suit the lower octane ("regular") fuel. The only penalty is that the engine will not have quite as much power as it could otherwise have.
The rules are simple: on vehicles which state only use "super" that's all you use and such cars are now unusual. On vehicles which advise that "super" is recommended, you make the choice; no damage will occur but the engine will not reach peak performance on anything but "super"; this may also mean that fuel economy is not as good but you then need to weigh up the possible loss of economy against the higher cost of "super". On vehicles which recommend you use "regular" using "super" does no harm but offers no benefits at all.
"Super" is not a measure of how much energy the petrol has, it's just an indicator of the octane level. Higher octane fuel is more resistant to premature detonation ("knocking") and allows the engine timing to be set in a way which is more favourable to economy and high speed running. If an engine's management system lacks the ability to exploit the higher knock resistance, then there's absolutely no way for it to get any benefit and it's just a waste of money.
In practice, and especially in the USA where speed limits are often lower than elsewhere in the world, it's unlikely that you'll notice the difference under most conditions when using regular in your Lexus.
I hope that my reply has been helpful, please take a moment to rate my answer.
Posted on Mar 30, 2010
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