I was cleaning my engine over weekend, and noticed all the black crap around the TB butterfly, went to the my local motorparts seller who said the Astra's TB has a silicone coating and using Carb Cleaner with take this Coating Off!
SO I BASICALLY WONNA KNOW
....................Is it safe to use Carb Cleaner on my TB!
Cheers n sorry for the essay!
P.S. Its a 1.8 (Z18XE) Coupe if that makes any difference
P.P.S I have looked at the How 2 (http://www.bramcote-ridge.org.uk/HowTo/TB.pdf) but just wont clarification!