Oil question
HDF Community Team
Joined: Nov 2012
Posts: 6,186
Likes: 2,412
From: USA
Zinc and phosphorus levels are generally significantly higher in motorcycle oils.
For example:
https://www.mobil.com/lubricants/-/m...-v2-9-1-22.pdf
Do you need it? That's another question!
For example:
https://www.mobil.com/lubricants/-/m...-v2-9-1-22.pdf
Do you need it? That's another question!
Stellar HDF Member
Joined: Aug 2011
Posts: 2,733
Likes: 1,784
From: Newnan, GA
Last edited by Mongo1958; May 5, 2024 at 06:39 PM.
Seasoned HDF Member
Joined: Jan 2010
Posts: 7,368
Likes: 3,331
From: usa
And that 6 Gal bib ( bag in a box ) came from www.summitracing.com
Also make sure you choose the RED label box . For the synthetic oil .
Also make sure you choose the RED label box . For the synthetic oil .
Last edited by Iron lHorse; May 7, 2024 at 12:32 PM.
Intermediate
Joined: Sep 2023
Posts: 49
Likes: 8
From: Kansas
Oil is a mystery
There are many, many opinions out there and yet it seems like no one really has a handle on the oil debate.
I have used Mobil1 15W-50 in all my bike crankcases for decades. I use a heavier gear oil in the tranny.
I have used Mobil1 15W-50 in all my bike crankcases for decades. I use a heavier gear oil in the tranny.
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,062
Likes: 11,080
From: San Diego, CA
Trending Topics
Advanced
Joined: Apr 2024
Posts: 55
Likes: 18
From: home
Yup...when a question has decades worth of real world experience/evidence from which to draw a conclusion and yet no discernible consensus is ever reached, that's how you know that the argument itself is largely a waste of time, lol. There've been bikes on the road for forever and a day, decades longer than most of us currently riding have been alive...if there were some universal "use this, NOT that" truth to it, then by this point it would be common knowledge, and the debate wouldn't exist.
Last edited by 24Breakout; May 9, 2024 at 11:15 AM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
The Best and Worst Harley-Davidson Moves of 2025
Verdad Gallardo
HDF Community Team
Joined: Mar 2005
Posts: 1,864
Likes: 524
From: The 1980's
Oil always turns into a big debate. Never understood why. Some feel the need to hit others over the head with their brand and their reasons for using while telling the other guy how wrong he is. Others go so far as to have their oil analyzed and post that as evidence of how smart they are or how much more they care about their "investment".
Personally, I've used several brands in the last 22 years on my 2002 Fat Boy. Synthetic and dino. Everything from HD's dino to Royal Purple to Walmart synthetic and several in between. It's never blown up. It's never left me alongside the road. Those are the results that count for me.
Personally, I've used several brands in the last 22 years on my 2002 Fat Boy. Synthetic and dino. Everything from HD's dino to Royal Purple to Walmart synthetic and several in between. It's never blown up. It's never left me alongside the road. Those are the results that count for me.
