Generator Oil ........

[pauldeere]

The last time I changed the oil in my generator on the Greyhawk I put 30-W oil in it which is recommended for temp. down to 30 degrees. However once a week I start and run the generator for approx. 15 minutes. Now that the temps. here in Ohio have dropped down into the 20's and 30's I'm thinking that I should have used the 15-w-40 oil also a recommend oil for temps below 30 degrees. Was curious as to what weight oil do most use in their generators.

[RogerR]

My old Kohler manual said 30 weight or 10w30. But I would look up your brand and model and look in the manual for it or a seller of that brand.

[Stavman]

Lots of posts on this

Stick to what the manual says

[pconroy]

Originally Posted by Stavman

Stick to what the manual says

+1

And I think it was craigav that did some research into what's in Onan's branded oil too. IIRC, Amazon sells it.

[bucko]

Originally Posted by pconroy

+1

And I think it was craigav that did some research into what's in Onan's branded oil too. IIRC, Amazon sells it.

+2

[cherv]

I use Onan 15w40 exclusively. Onan knows what is best for their warrantee/generators. just y use it and move on.

[extrachrispy]

Rotella T6 15W40. I'd use 5W40 if I did a lot of cold winter camping.

[pauldeere]

I ended up using the Rotella 15W40, why?, our local auto parts carry's it. Now as suggested I'm moving on....