Onan generator

[Stewart Fan]

I have a 5500 watt Onan generator in my toy hauler. It's coming up on its first oil change. In my climate I can use either 15w40 or SAE 30. Both are readily available to me. Any compelling reason to choose one over the other?

 

[dogememe]

5w-40 synthetic?

 

[Colt45ws]

Delo 15W30. Done|

 

[HangFire]

Originally Posted by Stewart Fan
I have a 5500 watt Onan generator in my toy hauler. It's coming up on its first oil change. In my climate I can use either 15w40 or SAE 30. Both are readily available to me. Any compelling reason to choose one over the other?

If conventional, use SAE 30. If synthetic, use whatever you want.

 

[Chris142]

Can't go wrong with 15w40 unless your in a super cold area.

 

[Linctex]

Either will be fine as long as you don't get into super cold weather

 

[UncleDave]

Of those two - Id run the 15w40.

For my 7K's gassers, 8K diesels, Yamaha 3K, Honda 2000's - I run 0/5/10-40

I forget does the 5500 have a pressurized oil system or splash like the 4K?

UD

 

[rrounds]

I have over 400 hours on my 5500, all on 15w40. Coldest its been started was around 0*F and it fired right up.
It also has a pressurized oil system so don't forget the oil filter.

Rod

 

[dnewton3]

Originally Posted by Stewart Fan
... Any compelling reason to choose one over the other?

No; not really.

 

[UncleDave]

I run something w-40 in a number of things

I run straight 30 in nothing.



UD