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Inthe70s · 01-25-2015, 07:45 PM

Hi, I apologize for posting such a dumb question but this is my first RV generator that I have owned. It's a Generac NP-66G generator in a 1997 Rexhall Aerbus with 123 hours. I drained the oil and installed a new oil filter, along with an air filter and fuel filter. I have the original owners manual and have looked at several manuals online but Am confused about where the oil fill is? The manuals indicate that the oil dipstick is also the filler tube but on the front of the generator is also an opening/filler located about dead center of the front face of the generator. It has a blue cap with a symbol of an oil spout can on it but in all manuals, nothing is mentioned of what this opening is? I didn't want to put the new oil in that if it is for something else. I also thought that the dipstick seemed like a rather low location for an oil fill? Any help is greatly appreciated! Thank you.

BFlinn181 · 01-25-2015, 08:29 PM

The dip stick and cap covers the oil fill tube.

https://www.generator-parts.com/manu...c-rv/NP52G.pdf

Inthe70s · 01-26-2015, 05:23 AM

Quote:

Originally Posted by BFlinn181

The dip stick and cap covers the oil fill tube.

https://www.generator-parts.com/manu...c-rv/NP52G.pdf

Thank you for the quick response. I will put the new oil into the oil fill tube where the dipstick is. I am still curious as to what the other fill hole that is on the face of the generator? Does anyone know? Thx!

scdiver · 01-26-2015, 01:10 PM

I have a 95 Aerbus on a Chevrolet Chassis. I just want to say that as old as your rig is that you have very low hour on your generator. Be sure to exercise this generator at least 1 hour once a month with a load on it. In fact if this was mine I would let it run at least 2 hours once you have the oil in it. These generators use only about a half a gallon of gas per hour of use so with today's gas prices not to costly to run.
I bought my coach as a salvage motor home and have put a lot of work in to making it useable. Our shakedown cruise was in August and our first 3 week trip was in October. We sure hade fun as I know you will too.

Good Luck