5W40 Amsoil or 15W40 Amsoil?

[Snoop]

Amsoil 5w30 guys... What interval are you changing oil at? I run it with amsoil bypass kit and change every 7500 miles.

 

[bboteler]

between 7500 - 10000 depending on my analysis results. I'm running a bypass as well.

 

[strokin6L]

I change my oil once a year and only put on about 4K miles a year. I am also running an amsoil oil by pass kit.

 

[08straightpiped]

Any of you guys towing heavy in the heat using that 5W30?

 

[bboteler]

I wouldn't say I tow "heavy"...but i move 5-10k lbs in cattle and/or hay a few times every couple months.