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#1359350 - 02/01/09 06:14 PM What's In Pennzoil Gas Mileage Improver
MrBiglund Offline


Registered: 12/12/06
Posts: 131
Loc: Canada
Hey, guys, i had bought some pennzoil yellow bottle dino 5w30 some time back from walmart (4.73 litre jug for $10.00) and it came with a free bottle of pennzoil gas mileage improver. I'm just wondering what is this stuff? Is this a upper cylinder lubricant? solvent? injector cleaner? water remover? I haven't added any yet to my gas, but was thinking about doing so. Is it ok to add it after an oil change? Or is it better just to add it right before doing an oil change? Will it in any way contaminate the new oil? Please enlighten.


Edited by MrBiglund (02/01/09 06:14 PM)

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#1688309 - 11/29/09 06:49 AM Re: What's In Pennzoil Gas Mileage Improver [Re: MrBiglund]
cjcride Online   content


Registered: 11/06/09
Posts: 528
Loc: Ontario Canada
Contact Penzoil.
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2004 Corolla



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#1688581 - 11/29/09 01:33 PM Re: What's In Pennzoil Gas Mileage Improver [Re: cjcride]
paulo57509 Offline


Registered: 07/13/03
Posts: 1679
Loc: Tracy, CA
Probably more wax. whistle

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#1688602 - 11/29/09 01:55 PM Re: What's In Pennzoil Gas Mileage Improver [Re: paulo57509]
dwendt44 Offline


Registered: 05/17/06
Posts: 3571
Loc: Central Wisconsin
If you add it to the fuel tank, it's likely a injector cleaner.
Any clues on the bottle itself?
_________________________
There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.

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#1688605 - 11/29/09 01:58 PM Re: What's In Pennzoil Gas Mileage Improver [Re: dwendt44]
mechtech2 Offline


Registered: 09/05/06
Posts: 19479
Loc: Chicago Area
Some guys like to change their oil after using injector cleaners.
I don't see it as necessary. Any doo doo is going down the exhaust pipe.

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