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      04-02-2013, 08:26 AM   #28
thekurgan
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Drives: E90M3
Join Date: Aug 2007
Location: Sacramento

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2008 BMW M3  [0.00]
Quote:
Originally Posted by aussiem3 View Post
Those plugs of yours are super clean.

Given 99% of the 37k km have been done in stop-n-go driving I have to accept that might be the case. I probably will do the plugs in another 20-25k km and see.

Also I am going to change from BP Ultimate to Caltex Vortex 98. I was told it's far cleaner than BP Ultimate given that there is a around 10% ethanol mix. I can't believe BP are cheating the customers. I was told that this is causing a lot of sludge build up in engines.
The previous owner drove 6 miles per day, 90% highway. I continue to drive the same or a couple of miles extra (city) stopping off at my gym on the way to work (morning, colder). How often have you run a fuel system cleaner? I'm wondering if that may aid in cleaning the plugs as well? I usually run a techron bottle every 3-4k miles, and the only reason is that I've gotten bad gas a few times, so preventative in a sense.
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