Tile man
Florida
New Member
Joined: 11/02/2011
View Profile
 Offline
|
I replaced my Onan RV 4000. I have no complaints. The old one gave me many thousands of usage hours.
The 50 hour break in oil change is due. I'm thinking about using 10-30 full synthetic oil.
Does anyone have a comment on this subject?
Thanks
|
jauguston
Bellingham, WA
Senior Member
Joined: 07/03/2005
View Profile
Offline
|
The only comment that really matters is Onan's. What do they recommend?
Jim
2005 Coachman Sportscoach Elite 402 40'
350hp Cat C-7 w/MP-8
7500w Onan quiet diesel generator
6-Kyocera 130w solar panels SB3024i MPPT controller
Pressure Pro TPMS
1987 Suzuki Samurai tintop Toad w/VW 1.6 turbo diesel power
|
Clay L
Sioux Falls, South Dakota
Senior Member
Joined: 07/01/2002
View Profile
Good Sam RV Club Member
Offline
|
Over the last couple of years several people have said/posted that they talked to Onan customer service and were told it was okay to use synthetic oil. I started using Mobil One 10W30 in my mine last year (along with my engine). No problems so far.
Clay (WA5NMR), Lee (Wife), Katie (cat).
Full Timing in a 2004 Winnebago Sightseer 35N, Workhorse chassis, Honda Accord toad
|
Terri21
Newfoundland
New Member
Joined: 05/15/2012
View Profile
Offline
|
Clay L wrote:Over the last couple of years several people have said/posted that they talked to Onan customer service and were told it was okay to use synthetic oil. I started using Mobil One 10W30 in my mine last year (along with my engine). No problems so far.
..I also have been using Mobil One full synthetic 10W30 and have noticed faster starts, quieter operation and am pleased with it so far...had asked at an Onan repair shop and was told it should be fine...also running full synthetic in my RV engine...a 6.6L Chev..
|
Gau 8
United States
Senior Member
Joined: 11/06/2009
View Profile
Offline
|
Use what the manufacturer recommends. Especially under warranty.
|
|
|
mlts22
Austin, Texas
Senior Member
Joined: 11/15/2010
View Profile
|
I like running full synthetic in generators if at all possible, just because newer ones are splash lubricated, so the little oil the genset uses is put through heavy use. Might as well use the best.
|
W4MBG
Williamsburg, VA
Senior Member
Joined: 12/15/2010
View Profile
Good Sam RV Club Member
Offline
|
isn't it supposed to get SAE30 or 15W40? i would go with the 15W40 rotella (or mobil-1 after break-in).
1999 Winnebago Minnie, 29', Triton V10, mostly stock. So far...
|
Clay L
Sioux Falls, South Dakota
Senior Member
Joined: 07/01/2002
View Profile
Good Sam RV Club Member
Offline
|
W4MBG wrote:isn't it supposed to get SAE30 or 15W40? i would go with the 15W40 rotella (or mobil-1 after break-in).
My manual says SAE30 is good for the temp range I tend to stay in but says 10W30 is okay for wider temp ranges.
From the Onan manual:
TABLE 1. OIL VISCOSITY VS. TEMPERATURE
EXPECTED AMBIENT SAE VISCOSITY
TEMPERATURES GRADE
32° F (0° C) and higher .........30
10° F to 100° F (-12° C to 38° C) 15W-40
(OnaMax™)
0° F to 80° F (-18° C to 27° C) 10W-30
10W-40
-20° F to 50° F (-28° C to 10° C) 5W-30
|
