Synthetic Oil

craigie

Recruit
Joined
Jul 6, 2007
Messages
4
Hi,

I have a Johnson 140hp 4 stroke 2 years old. Over here the Evinrude synthetic oil is a horrific $120 per gallon.

Since i'm a high hours user during the summer I am changing oil every week.

Do any of you guys know if I can use another good quality synth oil? eg Mobil 1 is half the price over here of Evinrude synth.

Many thanks
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: Synthetic Oil

Mobil 1 is a fine oil for 4 strokes and many use it with great results. I would have no problem using it..
 

dajohnson53

Lieutenant Commander
Joined
Apr 28, 2004
Messages
1,627
Re: Synthetic Oil

Hi,

I have a Johnson 140hp 4 stroke 2 years old. Over here the Evinrude synthetic oil is a horrific $120 per gallon.

Since i'm a high hours user during the summer I am changing oil every week.

Do any of you guys know if I can use another good quality synth oil? eg Mobil 1 is half the price over here of Evinrude synth.

Many thanks

I would look at the oil spec in your owner's manual and use whatever oil meets that spec.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Synthetic Oil

I used Mobil 1 in my Suzuki DF70 with excellent results. I wouldn't hesitate to use it in the Johnson 140 4 stroke.
 

Chief101

Chief Petty Officer
Joined
Sep 29, 2005
Messages
591
Re: Synthetic Oil

Heck yea, I use Mobile 1 in my 6 cylinder... Smith & Wesson. Chief Chief
 

Willyclay

Captain
Joined
Sep 8, 2006
Messages
3,264
Re: Synthetic Oil

Didn't Suzuki build those 140HP 4 stroke engines for BRP/Johnson?
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Synthetic Oil

Yup. OMC did build the 8, 9.9 and 15 4 strokes in the 90s, but all 40HP and up Johnson and Evinrude 4 strokes are Suzis in different dresses.
 
Top