Vpower -Intake valve carbon?

[Ranger Rico]

Are Shell claiming to have solved our Carbon build-up issue?

https://www.shell.co.uk/motorist/v-powe ... eaded.html#

[QuRace]

Are Shell claiming to have solved our Carbon build-up issue?

Pretty sure they do. They would claim anything in order to liberate you from your hard earned money...

But, the question remains how that cleaning effect (on intake manifold/valves) would come about in a direct injected engine, where the petrol, with its wonderful and I'm sure expensive ingredients, actually never passes through it/by them.

Such cleaning effects do exist, in general, but only ever in port injected engines.

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[12th]

I always used Optimax, then V-Power. Might have slowed build-up, but it didn't stop it.

[AndyBrad]

yea im afraid i dont think its going to solve our issues