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UFO · 09-28-2010, 05:36 PM

I would think it's a common rail injector with a piezo-electric actuator. They run extremely high pressure, around 20k psi, and are very sensitive to lubricity. The new VW TDIs are common rail and are currently experiencing a ton of premature injection pump failures. VW is trying to blame the customers for mis-fueling, but the US spec diesel fuel is not as lubricating as the EN spec, which the TDI CR is designed for.

At any rate, I think you could add about 5% biodiesel to pump gasoline, get a seriously lowered octane and highly lubricating fuel that might work well in this application.

09-28-2010, 05:36 PM	#6 (permalink)
UFO Master EcoModder Join Date: Sep 2010 Location: Denver, CO Posts: 1,300 Colorado - '17 Chevrolet Colorado 4x4 LT 90 day: 23.07 mpg (US) Thanks: 315 Thanked 179 Times in 138 Posts	I would think it's a common rail injector with a piezo-electric actuator. They run extremely high pressure, around 20k psi, and are very sensitive to lubricity. The new VW TDIs are common rail and are currently experiencing a ton of premature injection pump failures. VW is trying to blame the customers for mis-fueling, but the US spec diesel fuel is not as lubricating as the EN spec, which the TDI CR is designed for. At any rate, I think you could add about 5% biodiesel to pump gasoline, get a seriously lowered octane and highly lubricating fuel that might work well in this application. __________________ I'm not coasting, I'm shifting slowly.