Is Lucas fuel treatment safe? -
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post #1 of 4 Old 07-08-2007, 06:54 PM Thread Starter
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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?

2000 sport XJ
4.5" lift (3" rough country suspension lift + 1.5" BB)
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post #2 of 4 Old 07-08-2007, 07:01 PM
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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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post #3 of 4 Old 07-08-2007, 07:03 PM
Join Date: Feb 2007
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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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post #4 of 4 Old 07-14-2007, 07:24 AM
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use it like once a month, that will be best. not every tank!
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