FFT fuel additive, just more snake oil?

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mixed results.

it is registered with the EPA How much does it cost compared to a gallon of gasoline?

I had a Nissan the required a full carburetor rebuild every time I tried one of these "tune ups in a can". Perhaps you will have different results.

David A. Smith

Stuff like this appears every time there is a runup in gasoline prices.

Proven ways to improve milage on a car include maintaining tire pressure at a higher recommended level; changing driving habits to minimize frequent changes in speed; combining trips where possible; keeping the car in good tune.

I agree.

You really need to see the official tests from the university or testing lab in order to make a decision.

The combustion catalysts I have seen gave some decent emissions improvement on diesel engines. Cant remember now if they gave any improved fuel economy or not. Clearly, they never became front page news.

Looks like snake oil, smells like snake oil, but read an official report from a reputable testing facility before making a firm decision.

Not with that I haven't but you should try Ethos FR. It is non-toxic and non-hazardous and works not only in your gas but also in the oil in your crank case. If you want more info, email me at snipped-for-privacy@gmail.com

One pint is $25 which treats 160 gals. You use it 1 oz/10 gals. I think it can be had cheaper in bulk.

[snip]

Gas tank *and* crankcase? Then it is crap.

I have nothing to say about this additive, but I will comment on the report. It is a bad job. It says too little about how the tests were done to convince anyone that they were done well. And expressing the average mileages to a hundredth of a mile per gallon is ludicrous. The e-mail address of the author of the report is snipped-for-privacy@usm.maine.edu. I've cced this message to him, for his comment.

So you don't like Marvel Mystery Oil either, then.

I have used it as a motor oil additive to clean up varnished engines and sticking lifters. Like it or not, it has always worked (in the cases mentioned previously) for me. I put it in, run it a couple of hours, and then drain and change.

I do not, and would not, use it as a regular treatment.

I think it makes a dandy top oil when added to the gasoline. I'll run it in the crankcase for a few days myself, but like you I don't use it as a full-time crankcase additive.