Oil Viscosity and Evo's...

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Jan 31, 2022 | 08:00 AM

#11

98hotrodfatboy

Thread Starter

Seasoned HDF Member

Joined: Mar 2010

Posts: 21,116

Likes: 7,640

From: Poolville

Quote:

Originally Posted by TwiZted Biker

Yup, Only reason the manual suggests straights in the summer is lifters and valve train. They can say 20-50 is the same but the engine does rattle less when hot with straight 50 or 60.

Yeah in the Summer I would use straight 60 in the Shovel.. Seeing that the Evo is built I might try straight 60 in the summer in that as well.. Although I ordered a Six pack of VR1 from Amazon.. $26.00..... Can't beat that..

Jan 31, 2022 | 08:11 AM

#12

Lil'Mugsy

Intermediate

Joined: Aug 2020

Posts: 41

Likes: 18

From: Seaford, NY

I'm here on Long Island as well and I've been using Amsoil SAE 60 year round. I should switch to 20 w 50 and maybe it will warm up faster.

Jan 31, 2022 | 08:29 AM

#13

Rt13MFer

Road Warrior

Joined: Dec 2017

Posts: 1,504

Likes: 2,854

From: Delaware

Twin Power brand oil sold through JP cycles has a 25-60 weight. Thicker oil for hot weather and you still have the benefits of multi-viscosity that EVOs call for.

Jan 31, 2022 | 08:40 AM

#14

Hey Man

Seasoned HDF Member

Joined: Jun 2015

Posts: 10,291

Likes: 7,773

From: West Central FL

In Shovelheads down here in FLA I run 50w mixed with a little 60w in the colder months and 60w with one qt of 70w in the hot months. In the Evo I run straight 50w all year around.

Jan 31, 2022 | 10:22 AM

#15

ChopperBill

Seasoned HDF Member

Joined: Nov 2005

Posts: 5,589

Likes: 4,551

From: USA

I always use 25-60 non synthetic.

Jan 31, 2022 | 10:56 AM

#16

Architect

Seasoned HDF Member

Joined: Apr 2010

Posts: 9,576

Likes: 7,953

From: Long Island, New York

Evo motors like HD Syn3, year round.

Jan 31, 2022 | 12:37 PM

#17

TheVanillaThrilla

Cruiser

Joined: Dec 2009

Posts: 157

Likes: 105

From: Tennessee

Mobile 1 15-50 synthetic in my Bad Boy. No issues whatsoever, stays cool and dynos very well.
Scott

Jan 31, 2022 | 01:00 PM

#18

GREENOHAWK69

Grand HDF Member

Joined: Oct 2006

Posts: 3,665

Likes: 714

From: DFW

Have run 20W-50 synthetic since I got the bike in November 2004. I'm a big fan of synthetic. Has worked well in cold and hot weather in my cars and bikes.

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Jan 31, 2022 | 01:44 PM

#19

davicico

Advanced

Joined: Mar 2015

Posts: 51

Likes: 17

From: South East

Quote:

Originally Posted by GREENOHAWK69

Have run 20W-50 synthetic since I got the bike in November 2004. I'm a big fan of synthetic. Has worked well in cold and hot weather in my cars and bikes.

+1

Another fan of syn here, using syn on a Evo for years and no problems, no leaks, it will last longer before a rebuild, there is so much myth in america with dyno oils, they are just cheaper.