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POPULAR MECHANICS, the most famous US automobile magazine which recently celebrated its 100 anniversary, took two years to test Tufoil.

This heading appeared in their Jan 1982 issue:

" A super-slick oil additive that works! " There are lots of slick oils on the market, but we've found one that does what it promises.

" There was an increase of 10.3% ( fuel economy ) - absolutely spectacular "

" Tufoil works. It didn't clog the oil filter, didn't leak out all the gaskets, didn't thin out...