Air Cooled engine oil

[mwm13]

I’m curious what everyone’s running for oil in their air cooled welders? I’ve got a 302 Airpak with the 30HP Kohler and I’ve been using Amsoil 10W-30 small engine Synthetic. It seems like good stuff I’ve been told it’s great for these small engines that bang away 10+ hours daily but sometimes I have trouble tracking it down and I’d like to hear what some of you other Trailblazer/Ranger guys are using

EDIT: I found the post by Cruizer after I made this here’s the link so we don’t have to do that all over again
https://forum.millerwelds.com/forum/...-cooled-engine

[ryanjones2150]

VR1 30wt racing oil for me.

[G-ManBart]

I don't doubt Amsoil is better, but I've been running Mobil 1 Extended Synthetic in my engine drive and Generac 20Kw standby unit.

[Helios]

Rotella in my air-cooled Deutz diesel.

[jrgreene1968]

Mobil 1, ..10w/30 for me in all my air cooled.
I run Mobil 1 in everything I own except my Cummins diesel

[mwm13]

I’ve read on another page that the oil we run in these air cooled engines should have additives like zinc. That a standard auto motive oil just won’t cut it. I’ll try and find the write up I read and repost it here

[OscarJr]

I’m curious what everyone’s running for oil in their air cooled welders? I’ve got a 302 Airpak with the 30HP Kohler and I’ve been using Amsoil 10W-30 small engine Synthetic. It seems like good stuff I’ve been told it’s great for these small engines that bang away 10+ hours daily but sometimes I have trouble tracking it down and I’d like to hear what some of you other Trailblazer/Ranger guys are using
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I have an account with Amsoil, so I just order directly from them. It's like $20 a year, and they deliver straight to me anything in their website. I use that oil in my generator.

[Aeronca41]

Search this forum for Cruizer's posts on oil. He runs a welder repair business, and does a lot of engine-drive work, I think with focus on the Canadian oilfields. He has not posted in some time, but I believe his go-to oils were Quaker State Defy, Motorcycle oil (from Harley, if I remember correctly), and I think he may have mentioned Rotella T6, but don't quote me on any of that. Seems the VR1 racing oil Ryan mentioned was also in his lineup, but 30 weight is pretty thick for winter use up north.

[ryanjones2150]

You’re right, Wayne, I changed all my air cooled engines to the VR1 after that lengthy discussion we had a few years ago on this topic. Turned out my local parts house I patronize stocks the VR1, so that’s really the only reason I chose that one.

The only air cooled engine I don’t use it in is the genset in my motor home. It’s an Onan and I bought a case of the specific onan oil while it was still under warranty. A case of oil for a 4400 watt genset will last a long time.