Oil & Additives
Nothing to do with Scions' but oil being used.
Back in the days I was in the military, we use to add 'Marvel Mystery Oil' to all gasoline engine vehicles at oil changes. The Govt use to buy MMO in 55 gal drums.
Totally not sure what's in this stuff, but been adding to oil and gas for year.
Engines seem to run smoother and quiet, and so far no problems.
I also add a little to my 5 gal gas container I use, for filling up snow-blower, lawnmower, chain saws, etc
People seem to swear by this product.
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