Red Line 42504 20W50 Motorcycle Oil Synthetic - Quart (4 Pack)

Only oil that I like in my Harley Davidson. Great product.

Bike runs so much smoothly

Had used Harley Davidson Syn 3 for over 20 years, but decided to try Red Line in all three holes. I immediatley notices a reduction of noise and shifting ease. Will continue to use it since my Harley seems to like it better than the HD brand.

I've been using Red Line engine, transmission and primary oil exclusively for 13 years now. My 2010 Road King loves this oil and continues to run like a top. I feel it's worth it to spend a tiny bit extra and use a nicer synthetic oil like this. The peace of mind knowing your bike is well protected is worth it. I plan on using this brand for as long as I ride.

Great stuff

Ultra premium synthetic motor oil. imo there is no finer oil for a V-Twin (Harley etc). I have used Redline oil for 30 years. You will not be disappointed.

I use redline oil in every motorcycle oil change for Harley Davidson motorcycles that I do I use The 20–50 Motor oil I use the primary oil and the transmission oil from red line when I work on Non Harley Davidson bikes I use Lucas. The performance value and peace of mind that comes from using redline full synthetic oil is Key and keeping your customers coming back. Do them a good job and they will return for their next service.

I love you spectro oil since the 80s and I think it’s one of the best oils out there but the prices went so high that I started using redline a few years ago and haven’t had an issue with it.

It’s all I use

all I use in my bike, switched over to this and the primary and transmission lube. Rating synthetic oil is subjective to say the least. lol. I run it in my roadking and have for several years. works for me.

huile pour ma mt 01 , réduit fortement le bruit moteur , huile de très bonne qualité , un peu cher , je la recommande

Love thats oil. But little expensive

Satisfaction