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I flushed out the OAT and put regular Fram in there. This time I pulled the block drain plug and did it right. So glad I did. For anyone wondering where it is located see pic 1. My flashlight is shining on it. It was a PITA to get out but the right tool combo and a 3/4 breaker bar. I re...

I don't like the sound of acid coolant. So you just use normal green stuff, like super tech?

Thanks for any advice you can give me. This is the most heavy duty truck I've owned before. I run Rotella red ELC on my 7.3L power strokes one with green 620 Loctite on new injector cups one with factory cups (that's a debate in the 7.3L world). This is the Zerex coolant I bought from NAPA for...

Ok, I ordered some other fittings. I flushed system best I could and I'm using Zerex nitrite free heavy duty coolant. Can't wait see that filter. Thank you

Hey guys, I put a new coolant filter setup on my '67 M35A2 Deuce. Did I plumb it correct? I tapped into the thermostat housing after finding some free fittings at my neighbor's. But after the first drive the inlet hose wasn't warm but the outlet was hot as well as the filter. I'm wondering if I...