Date: Sun, 22 Oct 2006 18:41:47 GMT
From: Paul Halliday <>
Subject: Re: Shell V-Power Opinions

in article, Paul Halliday at wrote on 20/09/2006 18:35: > I filled up with V-Power and found that I was unable to make more than basic > boost, with very occasional spikes and quick drops back to basic boost. > Thinking there was an electrical fault in the APC system, I checked the > whole system over. Once empty, I happened to put a little 95 RON and found I > was able to make full boost again, albeit with a little knock a high revs. > > I filled up on my normal supermarket fuel and my car was back to normal. I > have since swapped my aged Bosch HT leads for "proper" Bougicords and > replaced the distributor cap and rotor arm. Curiosity got the better of me > and I filled up on V-Power to find exactly the same situation. Upon > finishing that tank, I'm now on Total Excellium (rated to 97 RON) and again > have no problems and top boost throughout the rev range in all gears. > > Can anyone shed any light on this? APC is reading the situation as "knock", > or that's what my APC knock LED says. With 99 RON, you'd think the exact > opposite would be happening. Is it just that I am unable to combust the > fuel? Turned out to be my fuelling ... It was miles off :? At 1.8% CO, V-Power ignites just fine. Paul 1989 900 Turbo S

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