Good Sam Club Open Roads Forum: Class A Motorhomes: Motorhome drinking oil
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Motorhome drinking oil

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next
Janss

Sedona, AZ

Senior Member

Joined: 04/29/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 07/18/19 08:00pm Link  |  Quote  |  Print  |  Notify Moderator

We keep having to add engine oil to our Chevy 8.1L motorhome in signature...like 16 oz. every 500 miles. It had a leak a couple months ago and we had an oil line changed. No visible leak now. No smoke coming out of exhaust pipe. Oil pressure on dash gauge is just like it's always been, about 55 when driving...with 40 being the middle and 80 the highest. Does that sound good? We don't even know what those numbers mean.

We are over 3,000 miles from home, so can't go back to the mechanic right now.

Just wondered if anyone has any ideas about our older motorhome, with 90,000 miles, that uses alot of oil. Should we be concerned? What can be done?

The engine still sounds and runs great!


2002 Itasca Suncruiser 32V
2012 Suzuki Grand Vitara

boogie_4wheel

SLC, Utah

Senior Member

Joined: 09/12/2010

View Profile


Offline
Posted: 07/18/19 08:19pm Link  |  Quote  |  Print  |  Notify Moderator

I had a '97 SBC with a bad valve stem seal suck approx 1qt per 600mi when I was on a trip from UT to CO. I did have a cold misfire at idle. The problem cylinder had heavy ash deposits on the spark plug. I could not see any smoke from the pipe.

A 'quick' test would be to pull the spark plugs and inspect for abnormal, this would tell you which cylinder(s) are having an issue. Leak, rings, or valve stems.


2005 2500 Cummins/48RE/3.73, QCLB, 4wd, BigHorn, Edge Juice w/ CTS + Turbo Timer,Transgo Shift Kit ISSPro Oil and LP pressure gauges, GDP 20/2 filters, Custom Diesel Steering Box Brace
'10 Forest River Shockwave Toy Hauler 21'
Honda EU3000I Genny

SidecarFlip

SE Michigan

Senior Member

Joined: 10/09/2016

View Profile


Offline
Posted: 07/18/19 08:23pm Link  |  Quote  |  Print  |  Notify Moderator

Keep an eye on the oil level and when you get home, take it to a shop and have the motor rebuilt.

90K in a Mo Ho, it's time.


2015 Backpack SS1500
1997 Ford 7.3 OBS 4x4 CC LB

K Charles

Connecticut

Senior Member

Joined: 03/06/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 07/18/19 08:34pm Link  |  Quote  |  Print  |  Notify Moderator

1/2 qt in 500 miles but how much in 1000 miles? Many engines will use a half at and stay there for many miles. You don't need to add until it gets to "add" our almost.





olfarmer

Iowa

Senior Member

Joined: 03/29/2006

View Profile



Good Sam RV Club Member

Online
Posted: 07/18/19 09:17pm Link  |  Quote  |  Print  |  Notify Moderator

K Charles wrote:

1/2 qt in 500 miles but how much in 1000 miles? Many engines will use a half at and stay there for many miles. You don't need to add until it gets to "add" our almost.


I agree, a qt to 1000 miles is no big deal. I don't think the manufacturer would fix that even if it was still under warranty.


Ed & Ruby & the 2 cats
2001 Winnebago Brave 30W
7.4 gas Work Horse Chassis
99 Jeep Grand Cherokee


time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 07/18/19 09:57pm Link  |  Quote  |  Print  |  Notify Moderator

Next oil change make sure you check the level immediately after to verify the full mark. Slight overfill can burn more oil.
Fill by capacity specification not the stick.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

Chris Bryant

Arden, North Carolina

Senior Member

Joined: 03/26/2003

View Profile



Posted: 07/19/19 02:26am Link  |  Quote  |  Print  |  Notify Moderator

I’d be tempted to slap a pcv valve in it- cheap and cannot hurt.


-- Chris Bryant
My RV Service Blog
The RV.net Blog

Janss

Sedona, AZ

Senior Member

Joined: 04/29/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 07/19/19 06:36am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the great input from all you knowledgeable people! Puts us at ease for the rest of our trip.

enblethen

Moses Lake, WA

Senior Member

Joined: 01/05/2005

View Profile






Posted: 07/19/19 06:38am Link  |  Quote  |  Print  |  Notify Moderator

PCV could such some oil as Chris said.
Quart every thousand miles is not that bad for Chev big block.90,000 miles should not need engine rebuild.
You may even put Seafoam in crankcase and run it to clean system. Run for 1000 miles before next oil chaange.
We have nearly 200,000 on 7.4 miles and uses a quart very 12-1500 miles. This depends on how hard the engine is working.


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


Bruce Brown

Northern NY

Moderator

Joined: 06/01/2001

View Profile



Good Sam RV Club Member


Posted: 07/19/19 06:51am Link  |  Quote  |  Print  |  Notify Moderator

K Charles wrote:

1/2 qt in 500 miles but how much in 1000 miles? Many engines will use a half at and stay there for many miles. You don't need to add until it gets to "add" our almost.


I agree with this. Many times an engine will seek it's own level and stay there for many, many miles.


There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next

Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Motorhome drinking oil
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS