If you continue running ATF might want to add rebuilding your injection pump to your database of knowledge.

 

Why would running ATF ruin the IP over time? I have a friend who is interested in running ATF. Just curious. Thanks.
Me? I am already looney enough to run WVO

 

so far there is no documented failures of 12v fuel injection/lift pumps from running ATF.

if I'm the first .... so be it.

I'm betting it won't happen. more worried about failure from running too thick of a mixture.

when my injectors clogged on a 700 mile run... I dumped aprox. 20 gal of new 15/40 motor oil into my tank that already had a 90% mixture of waste oils.

thermostat failure caused engine to run cold. last half of run occurred late at night in a thunderstorm. that's when I first lost power indicating time of injectors clogging.

I'm thinking more in lines of 50/50% mixture when running thicker engine oils. 75/25% for ATF due to thinner weight

 

I 've run plenty of waste oil in both of my trucks.Never had a problem,but 90 perecent holy crap man,cool that you tried it though.Most Ive ran is 15 percent of used engine oil