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Unread 07-08-2007, 06:54 PM   #1
Yazman
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Join Date: Sep 2006
Location: Detroit, MI
Posts: 120
Is Lucas fuel treatment safe?

I have been using Lucas upper cylinder lubricant/fuel mileage improver that comes in a 32oz bottle for about 7 tanks now. It has given me a couple more mpg but I was wondering if it is safe to use lucas fuel treatment for the rest of the life of my vehicle. Anybody else use this stuff?

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Unread 07-08-2007, 07:01 PM   #2
cmotsvt
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Join Date: Nov 2004
Location: USA
Posts: 2,317
Its safe though it will turn to syrup in the sub zero and clog the filler neck.
Using it all the time is a flat out waste of money unless youre getting it for free.
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Unread 07-08-2007, 07:03 PM   #3
XposedGuts
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Join Date: Feb 2007
Location: IL
Posts: 267
I use the "tune up in a bottle" everytime i change my oil. I think using it all the time would be a waste of $$ though
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Unread 07-14-2007, 07:24 AM   #4
collkid
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Join Date: Apr 2007
Location: Highlands Ranch, Colorado
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use it like once a month, that will be best. not every tank!
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