I just changed my oil to 0w20 mobil one .... i read some people having issues with the #7 bearing . I was just wondering if this is the oil i should run in my truck or is my bearings more at risk with it being so thin ? BTW i live in md where he temp is about 15 Degrees right now

thanks

shane

 

I hope the oil is fine i run it in my truck

 

You should be fine. I've run RP's 5w20 synthetic oil since the 4,000 mile mark. My 01 L now has 80,800 trouble-free miles on it.

Dan

 

I think next oil change i am gonna switch to amsoil 5w20 if they make a 5w20

 

If #7 rod journal is failing in these motors, it's going to be caused from tolerances, detonation, design, etc. It's not something that changing over to any specific brand or weight of oil is going to change.

Your best defense is to use a decent brand synthetic oil and change it every 5k miles (or less). Outside of that, you won't have any control over wear.

I will continue to use Amsoil 0-W30 in mine.

 

As you know I found Bearing 7 all messed up on mine.
Changed oil every 3K, ( I used Fully Syn 5w30 the first 2 times, Syn Blend 5w30 the 3rd , and Ford Motorcraft 5w20 for the last.

Although I immediately blamed it on a oiling problem, I'm now hearing if the bearing isn't blueing (which mines not) it was more likely caused by dirt, or debree. Why # 8 only is beyond me ???

Either way I have faith it won't happen again, because a real engine builder prepaired and assembled the motor this time, "NOT FORD"