Onan P4500I Cummins Generator Oil Change And Air Filter Service DIY

Tools Needed
10 MM Ratcheting Wrench
Phillips Screw Driver
Funnel With Hose
.6 Quart 10W-30 Engine Oil
Drain Pan
Dawn Dish Soap
Bowl/Bucket
How to DIY change the oil in your Onan P4500I Cummins gas generator. Also show you where the air filter is located and how to remove and clean it.

[@Jay-ys7tb]

Is it normal for these generators to burn a lot of oil. I bought it last year and only used it once and this year I've used it multiple times but after running for several hours with running the AC on a trailer it'll shut down on low oil level. Thats happened twice now and I've gone through a whole Quart of oil so far this summer.

[@ammonjohnson9531]

I have not experienced this with my P4500I

[@nickfrancisco7100]

Is there no oil filter on these?

[@ammonjohnson9531]

No. There is not an oi filter on this generator.

[@djsoundtechnique]

@@ammonjohnson9531 the manual clearly says to oil the air filter!

[@dedwin8930]

You can get a magnetic drain plug.