Adding engine coating treatment to the synthetic motor oil is necessary?

February 11. 2015

Recently more car owners use ‘synthetic’ motor oils made with high quality base oil like VHVI base oil or PAO*. at the same time, this trend  amplifies a suspect like: I’m already using the synthetic motor oil which makes up for shortcomings of mineral oil. Why should I add the engine coating treatment like Bullspower to […]

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