Is this true?
Seasoned HDF Member
Joined: Mar 2009
Posts: 24,656
Likes: 9,114
From: Snow Hill, NC
as long as you change it at regular intervals any 15w50 or 20w50 will work, the full syn will run a bit cooler...I get NAPA full syn at $4.99 za qt. Made by Ashland...Makers of Valvoline.
Road Captain
Joined: Jun 2006
Posts: 580
Likes: 0
From: Colorado
Also keep in mind that "Full Synthetic" is a rather loose term these days. It can be any combination of group III, IV, or V oils. Most likely predominately group III unless otherwise specified. At least that's my understanding. Personally, I opt for Redline, but would not fault anyone else on their choice.
Road Warrior
Joined: Oct 2008
Posts: 1,832
Likes: 37
From: Rockland County, NY
Mark is right. Many good articles written about this subject. Some "synthetic" oils. like the original Syn 3 have a base of dyno oil and other ingredients.
All About Motor Oil Good info here if you're not already bored with the subject.
All About Motor Oil Good info here if you're not already bored with the subject.
Outstanding HDF Member
Joined: Jun 2011
Posts: 2,023
Likes: 6
From: New Jersey
I'm sure someone closer to the facts will chime in soon.
Road Warrior
Joined: May 2009
Posts: 1,945
Likes: 3
From: Victoria, Australia
Citgo doesn't make oil anymore. I worked at the last lube plant they had. It was shut down in 08. Made some of the best oil you could get but no synthetic. Never produced synthetic. They paid us pretty well when they shut it down here in Louisiana. I bought my Ultra from the payment.
Wish there was good info on who it actually is at the present time.
Stage I
Joined: Jul 2009
Posts: 1
Likes: 0
From: Southern Ontario Canada
I used Amsoil in my ,02 V Rod and now in my '11 Street Glide. Smoother shifts and ran way cooler, fan ran half the time. Heat is an engine killer, less heat means less friction, means longer engine life. Thats the difference Worth the 9 bucks a quart!
Road Captain
Joined: Jan 2009
Posts: 563
Likes: 0
From: Perth, Western Australia
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
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
Now your talking Danny, let's finally put this dead horse to bed and let's get that sh$$ tested and move on............
Road Warrior
Joined: Nov 2006
Posts: 1,462
Likes: 121
From: Northern Illinois
Citgo doesn't make oil anymore. I worked at the last lube plant they had. It was shut down in 08. Made some of the best oil you could get but no synthetic. Never produced synthetic. They paid us pretty well when they shut it down here in Louisiana. I bought my Ultra from the payment.