Oil for generator.

[LILGUY]

The outside air temp where I live can span -20 to +100 F. In a calendar year. My whole site stand by system , Generac, recommends 5/30. Is there a better recommendation or does the system manufacturer recommended oil make the best sense?

 

[RF Overlord]

Use what the manufacturer recommends, unless you want to change oil seasonally. A synthetic would be perfect for your use.

 

[kschachn]

I live in about the same climate as you, and I also have a Generac standby generator. 5W-30 works fine, why do you suspect that it wouldn't?

This isn't your first thread on the exact same subject, aren't you getting the answers you want?

Originally Posted By: LILGUY
The outside air temp where I live can span -20 to +100 F. In a calendar year. My whole site stand by system , Generac, recommends 5/30. Is there a better recommendation or does the system manufacturer recommended oil make the best sense?

 

[webfors]

RT5 10w30. Excellent oil for small engines.

 

[TWar]

I use 0W30 GC in my generator for the winter. Easier stats

 

[cronk]

A 5w40 like Rotella T6 would be better at the high temps and still have your 5w for winter starting. If you got with a 5w30, get a good quality synthetic and keep an eye on your oil level.

 

[tig1]

A good friend of mine is a Generac tech. He uses M1 5-30 in all his service oil changes. He tells me he never sees oil levels low.

 

[Cujet]

T6 or M1, 5W-40 TDT. Both robust oils that will protect better than anything else.