I have had a chance to test several oils in a 16HP V-Twin.
25-50 hrs between changes.
I will simplify ( sum up UOA's ) for sake of getting this off to a good begining:
M-1 Red Cap/ SilverCap and GoldCap 15W-50..Excellent.
Royal Purple 10W-30..so so.
Redline 15W-50...excellent.
Amsoil 20W-50...engine surged.
Amsoil ASE 10w-30...ENGINE INCREASED VIBRATION. DRAINED. Why?
Mobil 1 20W-50 V-Twin...a bit to heavy.
Motul 15W-50...engine RPM increased..a bit too much.
1/2 M-1 15W-50 GoldCap and 1/2 Motul 15W-50 ...absolutely outstanding. After 25 hrs perfectly clean...will go for 50 hrs.
I am using a M-1 102 oil filter. This filter is way better than the tiny B&S yellow filter.
This might be good for a whole season. It changed my thinking.
25-50 hrs between changes.
I will simplify ( sum up UOA's ) for sake of getting this off to a good begining:
M-1 Red Cap/ SilverCap and GoldCap 15W-50..Excellent.
Royal Purple 10W-30..so so.
Redline 15W-50...excellent.
Amsoil 20W-50...engine surged.
Amsoil ASE 10w-30...ENGINE INCREASED VIBRATION. DRAINED. Why?
Mobil 1 20W-50 V-Twin...a bit to heavy.
Motul 15W-50...engine RPM increased..a bit too much.
1/2 M-1 15W-50 GoldCap and 1/2 Motul 15W-50 ...absolutely outstanding. After 25 hrs perfectly clean...will go for 50 hrs.
I am using a M-1 102 oil filter. This filter is way better than the tiny B&S yellow filter.
This might be good for a whole season. It changed my thinking.