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Old 05-04-2017, 10:27 PM   #1
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rickymac's Avatar
Brand: Thor Motor Coach
Model: 2014 Windsport 34f
State: Alabama
Posts: 286
THOR #6507
Oil for 5.5 Generator (Mobil 1 15w-50)??

Can I safely use Mobil 1 15w-50 oil in my 5.5 Generator

I can purchase at PX for 6.95 per quart.

Rick & Jan
with Lilly (Most Active Dog) & Mattie (Laziest Dog in the World)
Wally: 2014 Thor Windsport 34f
Toad: (Wally One) 2014 Fiat 500L Trekking (4 Down)
"Welcome to our front porch"
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Old 05-07-2017, 06:11 AM   #2
Brand: Thor Motor Coach
Model: 31L Chateau
State: Missouri
Posts: 92
THOR #4243
what does the manufacture of the generator suggest? 15-50 is what is normally used in diesel engines, kind of on the heavy side for a small gas engine. 5-30 or 10-30 would be better.

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Old 05-08-2017, 01:10 AM   #3
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Brand: Thor Motor Coach
Model: Windsport 27K
State: Kentucky
Posts: 708
THOR #2817
I don't think that viscosity oil is recommended. However, under high heat/high load conditions, that oil might be OK. I use 20W-50 in one of my motorcycles and the recommended viscosity is 10W-40.
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