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Discussion Starter · #1 ·
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
 

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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.c...l?v=QLialqfNuuw
many substances can act as a lubricant.

They may simply be implying that they are lubricating the inlet for a better flow as opposed to lubricating the bore of the cylinder (which is what i think you've interpreted it as).
 

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Graham - mk2 stage 3
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5,228 Posts
I guess if it is true it is like putting red -x in your fuel. It was supposed to lube the valves/valve guides etc upstream of the combustion chamber, then as oil has a higher combustion temperature than petrol it would not burn up and then act an an upper cylinder lubricant.
 
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