If the car runs OK elsewhere and you only had trouble on the beach...Originally Posted by dannypatrol
As mentioned by others your truck will run hotter (sometimes significantly so) on LPG depending on the tune etc.
You need a reliable gauge as even 1 or 2 PSI on sand can make a large difference.
I have seen, (and when teaching students to 4WD we demonstrate) that a svehicle negotiating a sand patch or dune you can't get thru on say any pressure above 16 PSI the truck will sail thru at 14 PSI.
It can be amazing the difference a couple of pounds makes also tyres with stiff sidewalls need an even lower pressure than those with more flexible walls.
One way to check your tyre pressure is to let the car coast to a stop and get out and check the front wheels. If the tyre is kinda "floating" on top then thats fine. If the tyre is "buried" and there is a bow wave of sand in front of it then the pressures are too high.
If you can totally rule out your tyre pressures and driving techniques... which are free to fix... then it is time to go hunting for mechanical issues
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