Question about 1996 Toyota Land Cruiser

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Warning check light

Hi after a mile or two the warning check comes on significantly reucing the engines power. The vehicle is convert to LPG but presently does npot run on LPG ue to the warning check light problem I guess. I rea it is an emissions problem. Any answers ?

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  • buzzhello Sep 02, 2008

    Yes thanks but the car is a petrol engine designed for unleaded fuel. The vehicle will have to go to Toyota for there comments.



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Hi there. When LPG is used to fuel internal combustion engines. It is often referred to as autogas. More recently, it has also been used in diesel engines. Its advantage is that it is non-toxic, non-corrosive and free of tetraethyl lead or any additives and has a high octane rating of 108 RON. It burns cleaner than petrol or diesel and is especially free of the particuales from the latter. It sounds like the best option for your vehicle since gas prices are higher than ever, but there are two downsides. Firstly it has a lower energy density than either petrol or diesel, so the equivalent fuel consumption is higher, but since many governments impose less tax, it is still usually more cost effective. Secondly, some designs of internal combustion engine require the lubrication of petrol or diesel with lead or lead substitute, and LPG's lack, thereof, can damage valves or shorten their life. Engines designed for unleaded fuel, equipped with hardened valve seats, are suitable for use with LPG without added upper cylinder lubrication, so if you did not do this with your valves, this might be your problem.

Posted on Sep 01, 2008


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