Castrol_Power_1_4T_20W50_Power_Release_Motorcycle_Oil
213 lbs load
1.21 heat from high pressure shear
3.78 heat from viscous friction
I would call this oil suitable for a Norton with mild tuning
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MPT_20W60_Motorcycle_with_STP
196 lbs load, reduced about 20 lbs. from test without STP
.95 heat from high pressure shear
.01 heat from friction
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Comma_Classic_20W50
190 lbs load
3.97 heat from high pressure shear
3.93 heat from viscous friction
I would not recommend this for a Norton
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Penngrade_1_20W50_Partial_Synthetic
152 lbs load
4.98 heat from high pressure shear
5.233 heat from viscous friction
Not recommended for a Norton
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Rock_Oil_Synthesis_10W50
196 lbs. Load
4.23 heat from high pressure shear
6.61 heat from viscous friction
Sufficient load capacity but high heat. Good for cool climates or water cooling.
__________________________________________________________ Duckhams_Q_Classic_20W50
117 lbs. load
No data for heat from high pressure shear
3.93 heat from viscous friction
Not suitable for a Norton
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Total_Elf_Moto_4_Race_10W60
228 lbs load
4.48 heat from high pressure shear
1.93 heat from viscous friction
Suitable for Nortons with mild tuning.
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Morris_Oils_20w50_V-Twin_conventional
222 lbs load
4.73 heat from high pressure shear
4.98 heat from viscous friction
Sufficient load capacity but high heat generated would limit this to cooler climates in a Norton.
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Fuchs_Silkolene_20W50_Comp_4
180 lbs load
5.74 heat from high pressure shear
4.25 heat from Viscous friction
Medium load capacity along with med/high heat would not make it a good choice for a Norton.
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Fuchs_Titan_Race_Pro_S_20W60
125 Lbs load
No data for heat from high pressure shear
2.14 heat from viscous friction
Load capacity is not high enough for a Norton
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Miller_Oils_Classic_Sport_High_Performance_20W50
128 lbs load
No data for heat from high pressure shear
0 heat from friction
Great low friction oil -too bad it's load capacity is too low to be recommended for a Norton
__________________________________________________________ Driven_BR_15W50_conventional_break_in_oil
163 lbs. load
5.99 heat from high pressure shear
3.95 heat from viscous friction
I would not use this in my bike.