J jonty Discussion Starter Aug 31, 2009 #1 as title has anyone ever used threre 10/40w semi synthetic in there aprilias :thumbup
K Kiwi_rsvr Joined Sep 2008 2K Posts | 0+ Shoeburyness, Essex Aug 31, 2009 #2 Not me , but then 15/50 semi is what is recomended, that said I do know some folk run 10/40.
L lees rsv Discussion Starter Sep 1, 2009 #3 I run mine on 10/40 and have no problems and i change the oil every 2000 miles
