Derekm Posted March 8, 2016 Share Posted March 8, 2016 The book says Yamalube 4 10W30 or 20W40, but no mention of type. Yam do mineral, semi-synth & full synth. and unfortunately, their prices are rather "imaginative". Yam don't make oils, so what are their oils exactly? I know about avoiding many car oils, because of friction reducing additives & clutch slip, but my local dealer said he recently serviced a VS 1100 for a customer, used their stock, branded motorcycle specific oil (don't remember the brand) and the customer came back complaining of clutch slip. In my previous 2 machines, Suzuki Katana 650 and Bonneville 850, I used Unipart semi-synth and had no problems, but the clutch slip phenomena seems to be a trait of V Stars & Viragos as I understand things. Advice from long term V Star owners appreciated. Link to comment Share on other sites More sharing options...
cotterpot Posted March 8, 2016 Share Posted March 8, 2016 I've had Halfords semi-synth in my bike for last 8 years - no slip here. Link to comment Share on other sites More sharing options...
Moderator Cynic Posted March 9, 2016 Moderator Share Posted March 9, 2016 Considering how low stress a big twin is, chip fat would probably be ok. As long as its motorcycle chip fat your fine. In one of my dim(er) past mechanical decisions I used car oil acquired from the back of my dads garage in my old 350, as usual, because I was skint. The clutch was never properly reliable until I swapped out the whole pack, both cork and metal plates, but that was over 20years ago, gulp! 1 Link to comment Share on other sites More sharing options...
KirriePete Posted March 9, 2016 Share Posted March 9, 2016 Another vote for Hellfrauds own semi-skimmed here. Had it in a variety of bikes over many years with no problems. Link to comment Share on other sites More sharing options...
neversaydie Posted March 9, 2016 Share Posted March 9, 2016 Never had any slip on my Virago, always used Silkolene Super 44 10W40 Link to comment Share on other sites More sharing options...
lallasro Posted March 9, 2016 Share Posted March 9, 2016 I use motul 5000 semi 10w40. I chose this for last services because is coming with k&n filter and for 30 pounds I think is ok. anyway, just don`t use full synthetic oil. yamalube cost a lot of money and is the same oil. Link to comment Share on other sites More sharing options...
Toutsuite Posted March 10, 2016 Share Posted March 10, 2016 I've actually used fully synth Silkolene for v twins (now unfortunately discontinued) for the past 5 years. No probs. I've a write up of it somewhere on the forums. Will switch to the standard Silkolene fully synth 10w40 next oil change. I just like the smoothness a fully synth oil imparts to the engine and gear changes. Link to comment Share on other sites More sharing options...
FLYIN BRIAN Posted March 19, 2016 Share Posted March 19, 2016 Full synthetic 10w50 for me. Was using 20w50 until availability became an issue. Link to comment Share on other sites More sharing options...
Dickwad Posted July 28, 2016 Share Posted July 28, 2016 On 3/8/2016 at 1:41 PM, Derekm said: The book says Yamalube 4 10W30 or 20W40, but no mention of type. Yam do mineral, semi-synth & full synth. and unfortunately, their prices are rather "imaginative". Yam don't make oils, so what are their oils exactly? I know about avoiding many car oils, because of friction reducing additives & clutch slip, but my local dealer said he recently serviced a VS 1100 for a customer, used their stock, branded motorcycle specific oil (don't remember the brand) and the customer came back complaining of clutch slip. In my previous 2 machines, Suzuki Katana 650 and Bonneville 850, I used Unipart semi-synth and had no problems, but the clutch slip phenomena seems to be a trait of V Stars & Viragos as I understand things. Advice from long term V Star owners appreciated. Fit a Barnett clutch conversion and you will never have clutch slip again, it replaces the feeble pressure plate with a multi spring clutch. Link to comment Share on other sites More sharing options...
t[r]ance Posted August 23, 2016 Share Posted August 23, 2016 You must choose in weather specific scope. 80% percent of people says - 10w40 is better oil for V-Twin, but in my region in sunny days +30C and this oil too liquid for that engine. As a result, my transmission sounds like a bag of bones... terrible sound. Please, look at the temperature table and choose oil for your region. Link to comment Share on other sites More sharing options...
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