Originally Posted by fel2
I often put 2 stroke oil in my car. To avoid knock. Not alot brand work.
They've actually tested that, 2-stroke oil is one of the best additives for old diesel engines to protect the high pressure injection pumps.
On gasoline vehicles, it will lubricate the valve guides to prevent premature wear.
On my Mazda RX7 (wankel rotary), I would premix 100:1 to lubricate the apex seals.
You gotta watch out though, if you mix it too rich, it can clog your catalytic converter, your oxygen sensor(s), and possibly foul your spark plugs.