Synthetic or Reg Oil? - Page 4 - Harley Davidson Street Forum - Street 500 and 750
User Tag List

 3Likes
Reply
 
LinkBack Thread Tools
post #31 of 41 Old 08-30-2019, 12:14 AM
Member
 
Join Date: Jul 2018
Location: Malaysia
Posts: 94
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
my take is when buying oil that fits my bike/car

Good Brand Mineral oil 4 lt - usd21
Good Synthetic Oil 4 lt - usd40

Oil and filter change every 5,000km (3,100miles), i use synthetic. (for cars its 10,000km)
oil and filter change every 2,000km (1,200miles), i use mineral. (for cars its 5,000km)

unfortunately my 750 needs to go back to the ex.Harley importer as warranty till 2020, however this time round they use AMSOIL V-Twin.
Due to limited spare parts here (washer and oil filter), no choice but to go back to official Harley after warranty over.
wke002 is offline  
Sponsored Links
Advertisement
 
post #32 of 41 Old 09-06-2019, 03:32 PM
Junior Member
 
Join Date: Aug 2018
Location: Oregon, USA
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Just for fun I changed the oil in my XG750A from Mobil 1 V-twin 20W-50 to Valvoline 4-stroke 20W-50.

I changed it because when I put in the Mobil 1 V-twin the shifting got noticeably "clunkier". Then I found out from VortecCPI that Mobil 1 V-twin is not "JASO MA" approved any more, which can affect clutch and shifting.

Anyway, going to the Valvoline reduced shift clunkiness about 80%. Fantastic! Thanks Vortec!
T-BoneSteve is online now  
post #33 of 41 Old 09-07-2019, 06:53 AM
Junior Member
 
Join Date: Sep 2019
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by T-BoneSteve View Post
Just for fun I changed the oil in my XG750A from Mobil 1 V-twin 20W-50 to Valvoline 4-stroke 20W-50.

I changed it because when I put in the Mobil 1 V-twin the shifting got noticeably "clunkier". Then I found out from VortecCPI that Mobil 1 V-twin is not "JASO MA" approved any more, which can affect clutch and shifting.

Anyway, going to the Valvoline reduced shift clunkiness about 80%. Fantastic! Thanks Vortec!

T-BoneSteve
Just to clarify. Did you use the synthetic Valvoline 4 stroke 20W-50?
HotSprings500 is offline  
 
post #34 of 41 Old 09-07-2019, 10:23 AM
Junior Member
 
Join Date: Aug 2018
Location: Oregon, USA
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by HotSprings500 View Post
T-BoneSteve
Just to clarify. Did you use the synthetic Valvoline 4 stroke 20W-50?
No, I used plain old blue bottle "Valvoline 4-stroke motorcycle oil 20W-50". $5.50 per bottle. If shifting stays good like it is I'll change to their synthetic version (silver bottle) in the spring.
Attached Images
File Type: jpg Valvoline.JPG (81.4 KB, 1 views)
T-BoneSteve is online now  
post #35 of 41 Old 09-07-2019, 12:00 PM
Junior Member
 
Join Date: Sep 2019
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks. I'll give that a try.
HotSprings500 is offline  
post #36 of 41 Old 09-08-2019, 02:04 PM
Junior Member
 
Join Date: Sep 2019
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks to everyone in this thread for the info.
And thanks to T-BoneSteve for the clarification on the Valvoline.
I stood in front of the oil shelf for longer than I should have debating oil. So I pulled the trigger on the Valvoline 4 Stroke Synthetic 20w-50. $7.49 a qt.
I parked the bike and drained the oil. Every last drop. Then the filter. I put in the new 20/50. Did a cold check. Warmed up the bike and did several hot checks.
I am thrilled with the results!. The engine sounds so much better. The clutch is more predictable and smooth. That major clunk while shifting gears is substantially reduced. And it seems that the high rev vibes are reduced on the freeway.
HotSprings500 is offline  
post #37 of 41 Old 09-08-2019, 04:40 PM
Member
 
autko's Avatar
 
Join Date: Mar 2017
Posts: 30
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
I have one question about engine oil for our Streets: can i use 10w50? Synthetic 20w50 in most cases are dedicated to HD which means -> EXPENSIVE 10w50 are more common and cost half the price plus have (in my opinion) better viscosity index. Additionally in the manual we have a statement, that if HD oil is not available one may use 20w50, 15w50 or 10w40... Why they didn't mention 10w50?! Are there any reasons for this?
autko is offline  
post #38 of 41 Old 09-16-2019, 07:43 PM
Senior Member
 
Join Date: Jun 2017
Location: Wisconsin
Posts: 426
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
Quote:
Originally Posted by autko View Post
I have one question about engine oil for our Streets: can i use 10w50? Synthetic 20w50 in most cases are dedicated to HD which means -> EXPENSIVE 10w50 are more common and cost half the price plus have (in my opinion) better viscosity index. Additionally in the manual we have a statement, that if HD oil is not available one may use 20w50, 15w50 or 10w40... Why they didn't mention 10w50?! Are there any reasons for this?

Unless you in really cold weather avoid 10w50.
smitty901 is online now  
post #39 of 41 Old 09-21-2019, 12:31 PM
Member
 
autko's Avatar
 
Join Date: Mar 2017
Posts: 30
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Are there any reasons for this? Most probably will stick with the 20w50 but I'm just curious why...
autko is offline  
post #40 of 41 Old 09-21-2019, 01:38 PM
Senior Member
 
Join Date: Jun 2017
Location: Wisconsin
Posts: 426
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
Quote:
Originally Posted by autko View Post
Are there any reasons for this? Most probably will stick with the 20w50 but I'm just curious why...

10W just will not longer term protect these type engines from wear. If you look at HD recommendation anything other than 20/50 is short term use and or Extreme cold.
Good 20/50 engine oil is not to expensive if you shop around. I run 20/50 even in 20 degree F weather with no issues.
As for syn or not it makes darn near No difference in these engines. Your Street is a 0ne hole bike. Same lube for every thing. No one has an engine failure now days due to oil. Other defects like a bad oil pump maybe but not because the brand of oil failed.
Engine oil changes are 5,000 miles and no reason not to run it 5,000. How many really ride more than 10,000 miles in any give year ? Cheap insurance to run the correct lubes
take any 5 - 10 most common 20/50 engine oils that meet HD specs run them in 100 bikes not one of them will wear any different over it's life span.
smitty901 is online now  
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
synthetic, semi synth or mineral ? kbull Harley-Davidson 750 Street Tech 13 11-15-2016 08:33 PM
Oil Filter? Tucsonmax1 Harley-Davidson 750 Street Tech 6 02-13-2016 05:15 AM
What Oil should I use? Tucsonmax1 Harley-Davidson Street General Discussion 1 09-08-2015 11:27 PM
Oil leak... saffa Harley-Davidson 750 Street Tech 3 09-03-2015 08:55 PM
Oil changes Kevin Penrose Harley-Davidson Street General Discussion 4 10-04-2014 03:25 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome