First time doing this so hang there with me.This is Schaeffers synth motorcycle oil.20w50
This oil has 4155 miles on it.2007 Road king.stock engine.sample was done at 12,853
Wear metals ppm
copper 11
Iron 10
Chromium 0
Alum 7
Lead 0

Additives ppm
Molybdenium 267
Phosphorus 1494
Zinc 1696
Magnesium 181
Calcium 2327
Sodium 30
Patasium 3

contaminates
Antifreeze 0
Fuel dilution N
Silicon 9

Oil Properties
Viscosity CST 16.67
SAE ISO 50
Sulfur 5
Oxidation 21
Nitration 13

 

Was that stuff marked API SN service ?
If so its way outta spec on zinc and phosphorus as they are very high !

Not that thats a bad thing for a Harley but man !

 

The API SN spec only has max Phosphorus limits for the viscosities-

0W-20, 0W-30, 5W-20, 5W-30,10W-30

ISLAC GF5 only has max phosphorus limits for 0w, 5w and 10w mulit viscosity oils.
The min spec for other viscosities is 600ppm of phosphorus.

API SN, SN with Resource Conserving vs ILSAC GF-5
API SN Engine Oil Category

 

Reason I ask is I have 4 qts of 20W50 MC oil from Schaeffer and the bottle has the API "Donut" on it stating it is "SN" which is very odd for an MC oil to even have an API donut

 

I chose this oil as it meets HD oil rating of CH4 or higher.
I was curious how it was doing, took a sample from my engine but didn't change it yet. Im pleasantly surprised.

 

I looked at the other bottles and yes it is SN.

 

All the oil I have is rated jaso ma2.Lucas, Schaeffers, Valvaline 4t.

 

Not saying its bad oil
I think its labeled wrong
Heres a list of products
https://engineoil.api.org/Directory/...me%3Dschaeffer

 

The schaeffers I have is product 707.

 

Thats what I have on the shelf as well
It's probably good oil ! and to me it looks like it is.

But its way out of spec for an API "SN" oil