I had not thought of the posibility of Valvoline having the incorect MSDS sheets posted on thier website , so i too went ahead and had the latest MSDS sheets for the 3 products faxed to me. They are exactly the same as those that Valvoline has posted on thier site.
So , Synpower Oil Treatment and Maxlife Engine Protector both come in 15 oz bottles and have the exact same MSDS ingredients and percentages word for word and number for number.
Synpower Engine Treatment comes in a 32oz bottle and is made up of 57%-67% CAS# 68037-01-4
Those are the facts.
Now , i think that Maxlife Engine Protector works best with the Maxlife oil because it has additives that the oil does not. I have used MLEP with Durablend , posted a UAO and the results were good but I am now running MLEP with Maxlife oil. I was looking for a additive to use with Durablend oil and thought maybe the Synpower Oil Treatment looked good but according to the MSDS ,its the same thing as Maxlife Engine Protector. I will look for the Synpower Engine Treatment and try that next oil change.