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Old 01-01-19
disco stu disco stu is offline
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Location: Wollongong
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I was confused about that comment as well, but now I've remembered the valve issues in some engines. They "reckoned" that anything designed for unleaded was fine for LPG, but I don't think that was the case, well for earlier cars post leaded petrol disappearing. I killed a valve on my 98 camry, possibly due to running LPG.

I don't think there would be any issues in any modern engines. Obviously direct injection wouldn't have any fuel lubricating the valve and seat and they seem to be alright.

The valve issue is the only thing that they could be referring to for increased wear and tear, and that is only on some engines in original spec
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