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Old 10-19-2009, 06:32 AM   #58 (permalink)
Shawn D.
Harebrained Idea Skeptic
 
Join Date: Jun 2008
Location: Alpharetta, GA
Posts: 211

The White Car - '84 Mercedes-Benz 300td
90 day: 28.84 mpg (US)

The Blue Car - '86 BMW 535i
Last 3: 23.86 mpg (US)
Thanks: 19
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Quote:
Originally Posted by dwtaylorpdx View Post
The new 3 series does exactly this, it does have an Emergency throttle plate that slams to stop runaway if needed.

I also wondered if gasoline was the only option?
Yes, BMWs with Valvetronic are gasoline-only. The throttle plate is not there to prevent runaway (the ECU would shut off fuel instead), but for emission functions & vacuum during warm-up and for limp-home control if Valvetronic has a failure.
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