Full syn or mix with dino oil?
Thread Starter
|
Road Captain
Joined: Jun 2006
Posts: 548
Likes: 21
From: 11th State 518
Full syn or mix with dino oil?
I had a buddy of mine give me 2 qts of Redline 50wt oil. He said mix it with a qt of 50wt dino oil or 2 qts of 50wt dino to 1 qt of the syn to quite down the motor a bit. Can this be done? I know about the temps with the straight weight oils. Just looking for some input. Thanks.
Stage I
Joined: Nov 2013
Posts: 1
Likes: 0
From: Schererville, IN
It's okay to mix any oil. There's really no magic as it relates to synthetic oil. It's still oil. it's just refined a bit differently. The "synthetic" title is somewhat misleading.
In any event, your ride will run fine if you choose to mix oils.
In any event, your ride will run fine if you choose to mix oils.
Outstanding HDF Member
Joined: Sep 2011
Posts: 3,255
Likes: 112
From: Florida
Yep, as matter of fact its a selling point for Redline. I mix 1 qt of 20x60w Redline with 2 qts of Castrol 20x50w Dino oil. Runs quieter and I still change every 4000 miles. No problems.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,897
From: Bedford UK
50 weight oil is really only suitable for riding in hot conditions, which you should find mentioned in your owners manual. If your weather at present matches those conditions, then use it as it is and top it up if necessary with whatever engine oil you have lying around. If not, then use a 20/50 oil until it does. If it never gets that hot, then use it up by adding half a quart to a suitable 20/50.
There is more folklore surrounding oils and Harleys than is healthy! Avoid getting into discussions about the darned stuff and use a big helping of common sense.
There is more folklore surrounding oils and Harleys than is healthy! Avoid getting into discussions about the darned stuff and use a big helping of common sense.
Seasoned HDF Member
Joined: Sep 2009
Posts: 25,292
Likes: 2,427
From: Eastern NE
Oil threads are about as opinionated as political threads so use your head and mix according to your conditions.
Trending Topics
Stellar HDF Member
Joined: Feb 2009
Posts: 2,936
Likes: 20
From: Driftless Area
I don't know why it is, but when I ran fully synthetic base gaskets leaked. Went to dino and no problems. I change oil religiously so no factor there. my .02.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Road Master
Joined: Jul 2010
Posts: 784
Likes: 56
From: Eastern Iowa
I had a buddy of mine give me 2 qts of Redline 50wt oil. He said mix it with a qt of 50wt dino oil or 2 qts of 50wt dino to 1 qt of the syn to quite down the motor a bit. Can this be done? I know about the temps with the straight weight oils. Just looking for some input. Thanks.
Going to a straight 50W would lose the times the bike could take advantage of lighter weight oil. (20W50) Starting/spring/fall mornings/etc....
Wouldn't you rather be able to buy 20W50 oil if needed while traveling instead of running home to get some of your home-brew oil?
