Previous Thread
Next Thread
Print Thread
#13916640 - 06/21/19 Synthetic or conventional mixing oil ?  
Joined: Feb 2013
Posts: 1,486
RickcNY Offline
Campfire Regular
RickcNY  Offline
Campfire Regular

Joined: Feb 2013
Posts: 1,486
Upstate NY
This for a 2002 25 hp Johnson 2 stroke ,what say you ,synthetic or conventional mixing oil and feel free to be specific with what you use

300 BP

#13916714 - 06/21/19 Re: Synthetic or conventional mixing oil ? [Re: RickcNY]  
Joined: Aug 2011
Posts: 494
jeeper Offline
Campfire Regular
jeeper  Offline
Campfire Regular

Joined: Aug 2011
Posts: 494

I've had no issues with regular old Quicksilver or Mercury 2 cycle oil in the black jug. Ran one or the other for 30 years and never had engine problems. Changed plugs every 3 to 5 years and they were never fouled.

#13917504 - 06/22/19 Re: Synthetic or conventional mixing oil ? [Re: RickcNY]  
Joined: Nov 2017
Posts: 804
fubarguy Offline
Campfire Regular
fubarguy  Offline
Campfire Regular

Joined: Nov 2017
Posts: 804
Homosassa Florida
have you contacted Johnson?
Or a good OMC mechanic?
Or a Johnson dealer?

All you'll get here is opinion and very little fact

#13918948 - 06/22/19 Re: Synthetic or conventional mixing oil ? [Re: fubarguy]  
Joined: Feb 2013
Posts: 1,486
RickcNY Offline
Campfire Regular
RickcNY  Offline
Campfire Regular

Joined: Feb 2013
Posts: 1,486
Upstate NY
No offense furbarguy ,asking the dealer is like asking if you should have your vehicle service by them or someone else, I generally think of dealers as snake oil salesmen

#13920745 - 06/23/19 Re: Synthetic or conventional mixing oil ? [Re: RickcNY]  
Joined: Feb 2005
Posts: 1,419
Uncas Offline
Campfire Regular
Uncas  Offline
Campfire Regular

Joined: Feb 2005
Posts: 1,419
Kansas and Alaska
Amsoil 2 Stroke is more like a wax than an oil. It makes the smoke issue tolerable and is not a petroleum type of pollution. There is a bit of a sheen (like dish soap rather than petroleum) produced at idle. Expensive but in a 25 HP I would guess you would be very pleased. I used it in a 1997 90 Yamaha 2 stroke in Alaska for years.


Watch 'Yer Topknot!
Alpha

#13925607 - 06/25/19 Re: Synthetic or conventional mixing oil ? [Re: RickcNY]  
Joined: Aug 2008
Posts: 338
immature Offline
Campfire Regular
immature  Offline
Campfire Regular

Joined: Aug 2008
Posts: 338
I have a 48 hp Evinrude that I bought new 32 years ago. In all that time I've run only OMC conventional oil and either Stabil or OMC 2+4 conditioner (which used to have an MSDS identical to Stabil, even made by Gold Eagle). This spring it went in the shop for the first time for carburetor rebuild to fix a 32-year accumulation of fine crud. In the process of troubleshooting what caused it to drop a cylinder the compression was checked; good in both cylinders. I see no reason to change oil.

Not just with outboards, but with other engines in general, I've always figured that the engineers who designed something know best, and that most products marketed by the manufacturer of an engine are well-suited to that brand of engine. I've had similar results as above using Stihl oil in my 41-year old Stih saw and an Echo trimmer that's about 30 years old.

Back in the 70s I had a friend who generally ignored manufacturer recommendations, as well as the outboard mechanic at work, who was OMC certified. He put some hot rod aftermarket prop on his almost-new 135 Evinrude and promptly blew it up. It could have also been because he ignored break-in recommendations and ran top end all day first day in the water.


Increasing my post count so people will buy stuff from me
#13950037 - 07/04/19 Re: Synthetic or conventional mixing oil ? [Re: RickcNY]  
Joined: May 2004
Posts: 3,365
ihookem Offline
Campfire Guide
ihookem  Offline
Campfire Guide

Joined: May 2004
Posts: 3,365
TAX HELL Allenton Wisconsin
I have a 22 yr old Merc 25. I ran it for years with the cheap oil but it smelled so bad I switched. I went to Amsoil 100/1 . It was much better but one day I got a pint of Merc TCW3 and used it and thought it smelled even less so I stayed with that the last 5 yrs. i run it 2 oz. per gallon and that is somewhat lean at 64/1. I read in a merc owners manual that it is safe to run 100/1 if used a lot i warmer weather . I did 100/1 on my old Merc and never had a problem with the engine. I figured the price of Merc TCW3. is cheap so I stick with it.


But the fruits of the spirit is love, joy, peace, patience, kindness, goodness,faithfulness, Gentleness and self control. Against such things there is no law. Galations 5: 22&23
#13950538 - 07/05/19 Re: Synthetic or conventional mixing oil ? [Re: fubarguy]  
Joined: Aug 2011
Posts: 494
jeeper Offline
Campfire Regular
jeeper  Offline
Campfire Regular

Joined: Aug 2011
Posts: 494
Originally Posted by fubarguy
have you contacted Johnson?
Or a good OMC mechanic?
Or a Johnson dealer?

All you'll get here is opinion and very little fact


How long you been running outboards ? Been running them over 40 years myself and using the oils I recommended and never had a powerhead prematurely wear out. I wish I knew the hours that I had put on 2 of them I had.


Moderated by  RickBin, SYSOP 

AIH 160
AIH 160 3
Who's Online Now
544 registered members (1234, 01Foreman400, 117LBS, 10gaugemag, 10ring1, 62 invisible), 1,197 guests, and 497 spiders.
Key: Admin, Global Mod, Mod









Fish & Game Departments | Solunar Tables | Mission Statement | Privacy Policy | Contact Us | DMCA
Hunting | Fishing | Camping | Backpacking | Reloading | Campfire Forums | Gear Shop
Copyright © 2000-2018 24hourcampfire.com, Inc. All Rights Reserved.
 
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.091s Queries: 15 (0.005s) Memory: 0.9534 MB (Peak: 1.1552 MB) Zlib enabled. Server Time: 2019-07-16 18:15:59 UTC