Guests - If You want access to member only forums on HSO. You will gain access only when you Sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
basser

Synthetic oil in older motor?

4 posts in this topic

I have an Evinrude 115HP 1976 , I want to start running synthetic oil in the mix. Is this OK? Do I have to change the mix ratio if I do this? Thanks Dan

Share this post


Link to post
Share on other sites

Thanks Musky , I run Amsoil 2000 50:1 in all the dirt bikes so I figured why not in the boat. The mix for the boat calls for 40:1 ,am I alright if I go to 50:1?

Share this post


Link to post
Share on other sites

I have run 100:1 amsoil in two different motors, a 1968 Mercury 50 and my current 1991 Force 120. It has never given me any problems whatsoever. But in the older merc, which has the old magneto/point style ignition, I got much better plug life on the synthetic, presumably because the leaner mixture burns cleaner. Performance in the Force seems to be near identical whether I run synthetic or natural lubricant. But that has electronic ignition and the better spark might be keeping my plugs cleaner. I also found that running Split Fire plugs made a tremendous difference in both motors, particularly in starting and smoother running at slower speeds. If it were my outboard, I would not hesitate to use Amsoil. I have no experience with the other brands.

Share this post


Link to post
Share on other sites

The big advantage of going to 100:1 is that I found the motors ran smoother due to a more volatile gas mixture. If you run synthetic, run it at 100:1. It's designed for that thin of a ratio. If you're woried about whether or not it will work, try it at 75:1, then gradually thin it out until you are at 100:1. The thinner synthetic mixture will help you keep a hotter and less fouled plug and still be well lubricated. Synthetic doesn't go away as fast as conventional oils. That's why you can thin it to 100:1. I'm sure you'll find 100:1 works just fine.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • DOILIES. Those thing on yer man-cave table tops. So that's a pic of DOLLY, huh? Smurf 's ol' gal friend?       
    • The first piece that Golden State might be losing is Andre Iguadala. Would love to see the wolves grab him.
    •   Sure anytime. But, it kind of sounded above you were over Dollies?  Or was that Dolly's?  
    • With all the moist and cool weather, the slugs are having a feast on our garden plants.  My wife asked me to look over some plants that the insects were destroying.  Upon inspection, this is what we found - slugs.  The vegetables treated with slug bait were fine.  It was the flowers, asters, marigolds, pole beans, etc. that were untreated and weakened by some hail were experiencing a slow death.  Check this photo out of the slugs.  These were white like extra large maggots.  They are all treated and coming back strong.
    • WOWZER what a beast!!!!!!!!!!! that DNR  biologist, Mero, i had a talk with him he did the creel survey on our little lake up in itasca county, odd that he would comment about mille lacs since he was out of the grand rapids DNR  office!!!!!! good guy though!!!!!!
    • Crud. I knew that would come back on me. I'll haveta head up to leeches and borrow some of his table doilies. 
    • http://www.startribune.com/monster-muskie-found-on-mille-lacs-exceeds-state-record/431203243/
    • And that's the key...it takes a guy or two to step back from the max deal and take a pay cut to keep this type of talent together. In the NFL, the Patriots are a dynasty because Tom Brady is smart enough to take far less than he'd command on the open mark to stay put with a great coach and build weapons around him...he values rings (aka, his legacy) more than a few more dollars. If GS can do that, they will be relevant for a very long time.
    • nope it didnt!!!!!!!!!
    • IDK, people pick apart the Hanzal/White trade as a mistake, but I don't. I think it was totally worth the shot to make a solid push. Going in everyone who did any analysis knew the first round was going to be full of 2nd round talent so losing a 1st rounder this year wasn't giving up much. I also don't think Fletch should make a trade for the sake of making a trade either. That is a desperation move and not one fueled by focusing on getting the team better. I would be shocked if someone like Scandella isn't moved in order to make room from Granlund, Nino, etc. We are really tight now with the guys we want to keep and have a few holes to fill beyond that so something has to give.
  • Our Sponsors