hi michael...
stop! don't start it! your enjun is gonna EXPLODE!
ok, not likely a problem for one short oil interval (3-5k)...
the syn version most likely has a more additives but the msds is too vague...
25% is a LOT and since diesel oil has more detergents and antifoamers and diesel specific additives...
although the lucas data suggests even 60% is 'safe'...
i would really NOT use either lucas product in the oil...
now IF what you want is better lubrication, longer oil intervals, easier starts and blah, blah, blah...
in other words ALL of the things lucas claims to provide...
consider adding one gallon of rotella 5-40 syn to your regular dino oil change...
that's the equivalent of making a 'syn-dino' blend with an absolutely PROVEN and COMPATIBLE product....
i'm using full syn BUT with your mota i'd go 50/50 or 25/70 syn/dino...
how's the paint'n goin' ?
cheers
2air'