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chris75 · 16th April 2019, 14:21

I've decided it could be a build up of "evaporated " petrol residue .Or it could be oil mist coming from the VIS chamber ; turns out the alloy manifolds are coated in an oil mist , but the airways in the head are spotless !
Anyway , nothing to be concerned about …..

16th April 2019, 14:21	#4
chris75 same car since 2005 2001 Rover 75 2.0 v6 Connoisseur Saloon Join Date: Nov 2006 Location: Ellesmere Port , Cheshire Posts: 3,811 Thanks: 379 Thanked 549 Times in 466 Posts	I've decided it could be a build up of "evaporated " petrol residue .Or it could be oil mist coming from the VIS chamber ; turns out the alloy manifolds are coated in an oil mist , but the airways in the head are spotless ! Anyway , nothing to be concerned about ….. __________________ Who said it was simples ? Last edited by chris75; 16th April 2019 at 18:40..