Vehicle & Technical > Series Land Rovers

unleaded petrol

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Rich_P:
You can run it on straight unleaded.  If it hasn't been converted to run on unleaded the valve seat recession will begin taking place eventually (may be thousands of miles), eventually rendering a loss of cylinder compression because the exhaust valve will not be able to close the gap even after taking up the tolerances in tappet settings.  If it has been fitted with hardened valve seats then it should be fine with unleaded.

andyb:
Valve seat recession on unleaded is accelerated by high revs and high exhaust temperature over a long period of time.....like on a motorway. So it will depend to a degree on usage.

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