89 FXRS
Active Member
this is my first winter that I've had synthetic oil in my roadglide(redline 20/60) I live in California so it doesn't get nearly as cold as some places back east or up in Canada - however with the rainny season I haven't started the bike up for a couple of weeks and today was the second time I noticed that when I first start the bike up after not starting it for a week or more that it shows no oil pressure for the first 4 to 7 seconds - I never noticed this before when using regular 20/50 Harley oil, nor did I notice it any other time of the year while using synthetic - is this a normal characteristic of synthetic oil, and is there anything to be concerned about? My guess is that synthetic oil is so much more slick than the regular stuff that it drains down to the cases faster. Also that maybe I should run 20/50 in the winter time???