Harley Davidson Motor Oil And Cold Winter Riding

[@plop961]

Why not change to semi synthetic 10 w 40. .. motorcycle oils, like silkaline, motul etc. . Just a normal basic 10 w 40, with a full purge, ie softail model's etc. ?? Especially in England, and North America "...where it's cold, but acceptable for short rides in winter

[@TheSwatxmr]

Syn3 20w-50 full synthetic for motor, Harley Heavy synthetic gear oil 80w-140 in the trans and primary yer round. 06 Road King Police FLHPI. North Carolina

[@paullesho2693]

I changed to Amsoil 10-40 in my Evo engines due to in the winter the oil light would stay on with the Harley oil. Really hard to start like piston drag. kill the battery quickly. What a pain that was. Amsoil the Twin cam I use 20-50 the evos 10-40 they run much cooler and fire right up no matter what the temp, Throttle response big time improved. Thinking about going to the Ams v twin 20-50 in the Evos one is a 2005 sportster 1200 and the other A 1995 dyna FXDWG but they both seem to like the Amsoil MCFQT 10-40 they fire right up and run cooler even in traffic on a hot day. My Harley manuals say that the 10-40 is excellent and the 20-50 is good. Question is , which is it?. the Harley manual Does not give a a high temp limit for the 10-40.I do know it makes a huge difference in the cold. Whether it starts up or you get stuck. I noticed also the the Genuine Harley oils are made by Sun oil company and give No Specks. Kinda odd.

[@smallengineshop]

I've seen Harley Davidson manuals for the Twin Cam say to use 10W-40 below 40F. Any temps above 40F use 20W-50. This was before they started selling full synthetic 20W-50. Their first synthetic oil was a blend.

[@treefrogs2894]

First begin when you riding your bike in the winter time especially a Harley-Davidson air-cooled motor you do not have a thermostat to control the cylinder temperature your best result is restricted airflow on the bike frame to maintain Heat it is a very important to have a temperature gauge in your oil if the motor is too cool you will have wear and tear the rings on the motorcycle will not seat properly you're required to have expansion to keep the ring tight in the cylinder only when the bike gets hot this is one principle I made a special guard for my Harley-Davidson Chopper in the winter time restrict the airflow when writing an cold temperatures it work very well 4 years no problem maintaining temperature this is very important to remember

[@2HotWheels]

Thoughts on the Sae 50

[@davidfellows6250]

in my shovels i always ran 40 weight in under 40ish degrees but im trying to figure out what is best for my 103. i ran 20/50 last uear but i was ridding in temperature well below 0 sometimes so im gonna look into maybe a 40 or even 30 this year as i developed a rocker noise ... and yes i know but....

[@MoeLarrycurly1]

If starts I ride 2050 Valvoline winter or summer 98 Fatboy

[@martincvitkovich724]

I hope it has enough zinc in it

[@MoeLarrycurly1]

Martin Cvitkovich it is for v twins

[@timur4467]

Harley says to use only HD oil because they want to earn money.

[@paullesho2693]

I believe you nailed it. Looks like more profit.