IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Does Synthetic Oil have a Bad Smell?

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Old 01-25-11, 12:27 AM
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ApokC
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Ah gas, sorry. Didn't mean oil. One of the 2 haha.

And ya, I just switched to an F Sport exhaust and now I notice a smell when I gun it alot and get out of my car
Old 01-25-11, 12:32 AM
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allst4r
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lol my exhaust just smells like gas.. money burning ...ps i dont have cats. =)
Old 01-25-11, 01:33 AM
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IS25Heaven
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Originally Posted by ApokC
If you have an aftermarket exhaust, that might cause a "different" type of smell that you're noticing.

"Rich" means that your burning too much oil
Bro, you should be 100% sure when you are posting something, or use this term iirc if you are not sure.

You dont want to be giving wrong information to people that come here with questions.
Old 01-25-11, 11:48 AM
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TicDatDo
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Originally Posted by mong
If your don't have your CEL(check engine light) on, then your engine is not running "rich". Which is a good thing. The best advice I can give you is take it to the dealer if you think it could be something serious or, get a second opinion like a mech you trust, and go from there. Good luck.
no check engine is off. I dont feel like its serious. i mean still getting around 21-24mpg, thats in the snow which is pretty good. I dont feel like its loosing power or anything, might be wrong idk. just to be safe i can bring it to the dealer and have them check it out. theyll know best.
Old 01-25-11, 11:51 AM
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TicDatDo
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Originally Posted by ApokC
Ah gas, sorry. Didn't mean oil. One of the 2 haha.

And ya, I just switched to an F Sport exhaust and now I notice a smell when I gun it alot and get out of my car
thats about right. i smell it the most when i stop at red light or something after gunning it. I talk to a mech. that works at toyota this morning and he said it might be just the exaust coming back up in the cabin after a hard run. he also said try to use different gas at a different station to see if that helps.
Old 01-25-11, 01:53 PM
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jbjones85
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I get the same thing sometimes but I think it is just the exhaust fumes.
Old 01-25-11, 06:05 PM
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lobuxracer
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First, does synthetic oil have a bad smell? No, never what you've described.

What you smell is sulfur dioxide and it's common with catalytic converters. There are LSBs about this. It really depends on the sulfur content in your fuel. Less sulfur, less smell. I wouldn't worry about it, but I also wouldn't try to breathe it in. Sulfur dioxide turns into sulfuric acid with just a little bit of water very quickly (SO2+H2O > H2SO3+O > H2SO4) which means sulfur dioxide in your lungs will form sulfuric acid in your lungs and burn you.
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