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      02-11-2010, 03:31 PM   #41
Evolve tuned...
Drives: E93 335i M-Sport
Join Date: Aug 2009
Location: Wilts, England

Posts: 291
iTrader: (-1)

Originally Posted by Matt2008 View Post
Quick question... Only used BP Ultimate diesel in my car but if i wanted to try out tescos 99 octane, is it best to get my tank almost empty before trying? I usually never let my tank drop below half.
Likewise with my non BMW petrol engine which i use BP Ultimate.
Tescos 99 octane is PETROL not diesel, how would you use it to replace BP ultimate diesel???
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