My son has started racing motorcycles and we are experimenting with oil change intervals. This UOA was after 2 race weekends.
This is Amsoil 10W40 motorcycle syn oil
Analyzed by Wear Check, Ontario, Canada
Silicon.....4.6
Potassium...0.0
Sodium......63
Fuel ...... Water...... Sulfation..165
Nitration...13
Boron......0.9
Barium.....0.0
Calcium...2487
Magnesium..125
Moly.......0.4
Sodium......63
Phosphorus.1006
Sulphur...3494
Zinc......1086
Visc@100 Deg C...11.8
Oxidation...73
TBN.......9.19
Iron.......9.3
Nickel.....0.0
Chromium...0.3
Titanium...0.0
Copper.....1.4
Aluminum...9.9
Tin........0.0
Lead.......0.4
Silver.....0.0
We changed the oil after this analysis but we are looking for some guidance from the forum. We are primarily worried about viscosity loss due to shear in transmission.
Is this oil still OK for use?
Is viscocity still OK?
Or should we change after every race?
Besides viscosity - what other critical parameters should we watch for?
This is Amsoil 10W40 motorcycle syn oil
Analyzed by Wear Check, Ontario, Canada
Silicon.....4.6
Potassium...0.0
Sodium......63
Fuel ...... Water...... Sulfation..165
Nitration...13
Boron......0.9
Barium.....0.0
Calcium...2487
Magnesium..125
Moly.......0.4
Sodium......63
Phosphorus.1006
Sulphur...3494
Zinc......1086
Visc@100 Deg C...11.8
Oxidation...73
TBN.......9.19
Iron.......9.3
Nickel.....0.0
Chromium...0.3
Titanium...0.0
Copper.....1.4
Aluminum...9.9
Tin........0.0
Lead.......0.4
Silver.....0.0
We changed the oil after this analysis but we are looking for some guidance from the forum. We are primarily worried about viscosity loss due to shear in transmission.
Is this oil still OK for use?
Is viscocity still OK?
Or should we change after every race?
Besides viscosity - what other critical parameters should we watch for?