Recent Topics
G-Oil back at Walmart?
by zanzabar
07/24/14 02:29 AM
Marvel Mystery Oil on Suzuki GSX1250FA
by Franklim
07/24/14 01:03 AM
Biology and Chemistry
by MolaKule
07/24/14 12:05 AM
One Plus One Phone Invites Anyone?
by gr8gatzby
07/23/14 11:44 PM
Acceptance Criteria
by MolaKule
07/23/14 11:00 PM
Want to buy a Buick 3800
by Nick1994
07/23/14 10:52 PM
Word Crimes...
by daves87rs
07/23/14 10:21 PM
Connections: A Special Material and its Chemistry
by MolaKule
07/23/14 10:10 PM
Subaru Outback Oil Consumption... Without a Trace
by bawalker
07/23/14 10:00 PM
Cut open: ACDelco PF63 with 6,069 miles
by gonefishing
07/23/14 09:56 PM
Ryobi SS30 trimmer won't stay running
by chevman4life
07/23/14 09:54 PM
Good filters for 2013 kia sorento 3.5L
by Alltherage
07/23/14 09:29 PM
Newest Members
Patrick0525, offroad1, cnowak1, Dave13, HuskyPilot
50737 Registered Users
Who's Online
36 registered (Boomer, 57ChevyLS, 77GrandPrix, 05LGTLtd, 2009Edge, chevman4life, 4 invisible), 891 Guests and 248 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
50737 Members
64 Forums
216701 Topics
3410813 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#483548 - 05/02/04 06:17 PM 10 HP Briggs & Stratton - Mobil 1 or GC?
C4Dave Offline


Registered: 04/25/04
Posts: 405
Loc: Tennessee
I did a search, and didn't see an answer to this. I just bought a 10 hp B&S riding mower. The manual says to change the oil after 5 hours of break in. Would I be better served with Mobil 1 10w30 or 0w30 German Castrol? The Mobil 1 has moly and boron, but the Castrol is slightly thicker and may not break down as much. But then again, maybe the thinner Mobil 1 would be better for cooling?

As an aside, the break in oil sure smells bad. Sulfur?

Top
#483549 - 05/02/04 06:48 PM Re: 10 HP Briggs & Stratton - Mobil 1 or GC?
Stooge Offline


Registered: 11/24/03
Posts: 272
Loc: Ellicott City, MD
Either is great, but I would stick with the 10W30 as it is specified in your owner's manual over the 0W30.

Top
#483550 - 05/02/04 08:51 PM Re: 10 HP Briggs & Stratton - Mobil 1 or GC?
D C Anderson Offline


Registered: 12/09/02
Posts: 22
Loc: TN
I have used Mobil 1 15W50 in my B&S 14 HP lawn mower since I bought it new 12 years ago. I have changed the oil twice in 12 years. I used a white paper towel to check the oil level with and monitored the color. The oil has stayed clear for 6 years and the pucker factor kicked in and I changed the oil. The oil still looks new. I mow an 1 acre lot as often as needed. Mobil 1 good stuff.

Top
#483551 - 05/02/04 08:53 PM Re: 10 HP Briggs & Stratton - Mobil 1 or GC?
Bror Jace Offline


Registered: 05/27/02
Posts: 4854
Loc: Saratoga, NY
As I've said in the other threads about B&S, I don't take their recommendations as gospel. Still, I don't think you can go wrong with any decent 30 weight oil.

So, your question is: "Which one of the two?"

Well C4Dave, you've got a handle on the strengths and weaknesses of the two oils. If this were 3+ years ago, I wouldn't even consider Mobil 1 (SJ formulations).

I guess I'd prefer the GC ... but both are probably overkill.

My Honda 214 mower uses to smoke on start-up with Mobil 1. But I switched to Schaeffer 15W40 and it stopped doing that ... even after sitting all winter.

--- Bror Jace

Top
#483552 - 05/03/04 09:36 AM Re: 10 HP Briggs & Stratton - Mobil 1 or GC?
Blue99 Offline


Registered: 09/27/03
Posts: 2233
Loc: Wisconsin
The UOA results for both M1 10W-30 and GC 0W-30 indicate that both oils tend to shear very little & hold their viscosity. The numbers typically posted for M1 10W-30 are in the low 60ís, GC 0W-30 are the low to mid 60ís. Expect similar results from either one.

In these air cooled small engine applications, Iím a fan of the idea that 30 weight syn oils give up heat quicker than the heavier viscosities or dino oils & result in slightly cooler engine temps.

Top
#483553 - 05/03/04 12:02 AM Re: 10 HP Briggs & Stratton - Mobil 1 or GC?
mrdctaylor Offline


Registered: 06/05/03
Posts: 239
Loc: McGregor TX
I bought a 10HP B&S riding mower last year and put Mobil 1 10W30 in it after the initial 5 hour break in. Its great stuff. The mower starts up quickly and runs great. No, this isn't a long-term test. I've only had it a year, but everything seems great with M1.

Top