Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 07-07-2018, 03:36 PM   #1
Member
 
Brand: Thor Motor Coach
Model: 29M Windsport
State: Georgia
Posts: 92
THOR #12172
OIL CHANGE FOR V-10 AND ONAN 5500 gen

Can't seem to find requirements for type and weight of oil to use. I plan to do my own oil changes for both as long as it doesn't cancel the warranty. Ideas and info needed.
__________________

__________________
skiptut is offline   Reply With Quote
Old 07-07-2018, 04:07 PM   #2
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,460
THOR #6411
Engine - SAE 5W-30 semi-synthetic - 7 qt with filter

Onan - 10w-30 up to 80 F degrees - 2 qt
15W-40 if over 80 F degrees
__________________

__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 07-07-2018, 04:39 PM   #3
Senior Member
 
Brand: Thor Motor Coach
Model: outlaw 37ls
State: Europe
Posts: 230
THOR #6831
i run 10w-40 in my v10 and in the gen set also, always found the 5-30 is to thin.and may go to 20-50w if i know i am going to drive in very hot weather
__________________
captmetal is offline   Reply With Quote
Old 07-07-2018, 07:00 PM   #4
Senior Member
 
Brand: Thor Motor Coach
Model: S.O.B.
State: California
Posts: 1,189
THOR #3483
Quote:
Originally Posted by skiptut View Post
Can't seem to find requirements for type and weight of oil to use. I plan to do my own oil changes for both as long as it doesn't cancel the warranty. Ideas and info needed.
I would stick with what the oil weight on the oil filler cap of your v-10 calls for. Ours on the Axis calls for 5-30. I use Mobil 1 full synthetic and have been using K&N oil filters. The generator specs by Cummins/Onan call for 30 weight in climates under 100 degrees and 15-40 for those over. 15-40 full synthetic is getting harder to find but I ordered a case on Amazon by Royal Purple. There are many others that offer "blends". As far as going with heavier weights for your v-10 because you are driving into a "hotter" climate, I don't make decisions like I did 40 years ago because I believe engineering has made enough improvements that I stick with the recommended oil specs. Many of the oil weights we used in our cars 40-50 years ago aren't even on the shelves anymore and there are some on the shelf that we didn't even think about.
__________________
axis earl is offline   Reply With Quote
Old 07-07-2018, 08:41 PM   #5
Senior Member
 
Brand: Thor Motor Coach
Model: 2015 Hurricane 32n
State: Georgia
Posts: 168
THOR #2983
The filler cap and manual for my 2015 v10 call for 5w20. They may have changed it for later models. I use Mobil 1.
__________________
Tom Bowe is offline   Reply With Quote
Old 07-08-2018, 08:44 PM   #6
Senior Member
 
Brand: Still Looking
Model: Fleetwood Storm 32V - pre
State: Alabama
Posts: 1,582
THOR #6826
Quote:
Originally Posted by Tom Bowe View Post
The filler cap and manual for my 2015 v10 call for 5w20. They may have changed it for later models. I use Mobil 1.


My 2017 Class C called for 5w30 in both the owners manual and on the filler cap. Interestingly my local Ford dealer suggested I was “mistaken” when I mentioned it and said they’d put 5w20 in regardless. I change it myself so I used the 5w30. On the other hand my 2017 Class A says to use 5w20. I expect there is a reason for the difference but I don’t know what it is. Both chassis were made in November 2016.
__________________
Pete'sMH is offline   Reply With Quote
Old 07-09-2018, 12:51 AM   #7
lug
Member
 
Brand: Thor Motor Coach
Model: ACE 32.1
State: Michigan
Posts: 83
THOR #11442
One of the best sites to get current and accurate information on Ford vehicles. Best of all its free!

https://owner.ford.com/tools/account...ord&model=F-53 Motorhome Chassis&currentVehicle=true
__________________
lug is offline   Reply With Quote
Old 07-11-2018, 02:49 AM   #8
Member
 
State: Alaska
Posts: 91
THOR #7980
I use Ford 5w20 in the v10 and I think it is too thin,
15w40 in the genny because it was using oil with the stock oil
__________________
ghof is offline   Reply With Quote
Old 07-11-2018, 04:54 PM   #9
Senior Member
 
Brand: Thor Motor Coach
Model: Windsport 27K
State: Kentucky
Posts: 669
THOR #2817
I also use 5W-20 in the V-10 engine and 15W-40 in the generator. I never have to start the generator in cold weather. I am skeptical about using 5W-20, but haven't gone to a higher viscosity oil. I suspect they want us to use low viscosity oil for better fuel mileage. As if that's going to make much difference.
__________________

__________________
Metalman is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 06:20 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×