The Best Oil for our Harleys is...
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Road Warrior
Joined: Jul 2013
Posts: 1,725
Likes: 193
From: South
The Best Oil for our Harleys is...
For Engine Oil,
I did some research: for those who want the short answer: it is Redline 20w-50 Synthetic Oil.
Based on the manufacturer's data, this oil contains Molybdenum, at 0.05 %wt.
Compared to Mobil 1 V twin 20w-50 synthetic, which has none, or I cannot find it in their data sheets.
If engine oil was shared with tranny/ wet clutch, Moly would not be good for you. But it is not, therefore moly is not only ok, but helps with your engine wear. ( Molybdenum is said to cause problem with wet clutches)
So, the best oil for engine is synthetic with an additive package that can reduce friction during the start up.
For clutch/ Tranny I use Red Line 57904 (75W90) Synthetic Gear Oil. This one is approved by hdforum gurus in the oil section as well :^)
Have a good weekend, and Happy mother's day if you are a mom and if not...
I did some research: for those who want the short answer: it is Redline 20w-50 Synthetic Oil.
Based on the manufacturer's data, this oil contains Molybdenum, at 0.05 %wt.
Compared to Mobil 1 V twin 20w-50 synthetic, which has none, or I cannot find it in their data sheets.
If engine oil was shared with tranny/ wet clutch, Moly would not be good for you. But it is not, therefore moly is not only ok, but helps with your engine wear. ( Molybdenum is said to cause problem with wet clutches)
So, the best oil for engine is synthetic with an additive package that can reduce friction during the start up.
For clutch/ Tranny I use Red Line 57904 (75W90) Synthetic Gear Oil. This one is approved by hdforum gurus in the oil section as well :^)
Have a good weekend, and Happy mother's day if you are a mom and if not...
Last edited by OddJack; Jul 29, 2014 at 10:23 AM.
Club Member
Joined: Feb 2007
Posts: 16,320
Likes: 306
From: Boynton Beach, FloriDuh
Oil thread # 1,687,365.
Yes, moly is great for the motor. Moly can be found in Mobil-1 15w-50 automotive synthetic. Harley motors do not need V-Twin oil. V-Twin labeled oils are made specifically for motorcycles with a single oil supply for the motor/primary/tranny.
Yes, moly is great for the motor. Moly can be found in Mobil-1 15w-50 automotive synthetic. Harley motors do not need V-Twin oil. V-Twin labeled oils are made specifically for motorcycles with a single oil supply for the motor/primary/tranny.
Road Warrior
Joined: Oct 2007
Posts: 1,599
Likes: 11
From: Colonial Beach, Virginia
OJ, Nah, that simply can't be true, I've been using RevTech 25w60 dino oil for about 17,000 miles and it seems to be the best. It makes the engine quieter and the engine doesn't use any of it. The 20w50 Syn3 went through it like soup through a parched camel. A Smoky Yunick saying.
cHarey, I'm havin a little fun.
cHarey, I'm havin a little fun.
Last edited by 1200Cdriver; May 10, 2014 at 07:49 AM.
Road Master
Joined: Aug 2011
Posts: 858
Likes: 17
From: victoria bc
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The best oil is whatever oil you have in your scoot that lets you go for a ride today! 
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