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Old 09-06-2004, 11:34 PM   #1
pperelman
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Question How critical is PREMIUM fuel for Q45?

Just want to know what might happen. I have owned LandRover which required Premium "only". Had it filled with mid range fuel - ok no problem...slightly less accelleration. No major engine problems have been discovered.
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Old 09-14-2004, 04:04 PM   #2
maxnix
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Re: How critical is PREMIUM fuel for Q45?

Very. The KS will start retardation which will increase richness, decrease mileage, and may start a runaway overheating condition on less than new OEM spec cooling systems.

The O2 sensors and catalytic converter's life will be shortened.

Don't confuse a DOHC VH45DE with a Landrover pushrod V8 from the sixties. If you must buy regular, get a Honda or a later model Cadillac.
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Old 09-15-2004, 09:02 PM   #3
pperelman
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Thumbs up Thank you for a good answer !

I know all aspects of ign syst and engine controls Just wanted to hear from real owners of this elegant vehicle!
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