According to the TV advert all it does is "help clean your engine" and "reduce friction".
I can see where the first claim has its benefits.
But the second claim how does a burning fuel reduce friction.
Oil is what i thought dealt with friction in the engine not fuel,or am i having a
moment.
http://www.youtube.com/user/Shell?v=QLialqfNuuw
I can see where the first claim has its benefits.
But the second claim how does a burning fuel reduce friction.
Oil is what i thought dealt with friction in the engine not fuel,or am i having a
http://www.youtube.com/user/Shell?v=QLialqfNuuw