Premium Fuel For Discovery2
#1
#2
Join Date: Apr 2006
Location: Denver, Colorado
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You stand the chance of carboning up the engine, which on a Rover is a big No No.
I will run mid grad sometimes when can't get premimun but with mid grade, I loose 1 MPG with regular, it is even worse. Plus you will screw up your ECU's ability to give you the best performance.
For what you loose in mileage, that alone should be a good reason not to go cheap.
Mike
I will run mid grad sometimes when can't get premimun but with mid grade, I loose 1 MPG with regular, it is even worse. Plus you will screw up your ECU's ability to give you the best performance.
For what you loose in mileage, that alone should be a good reason not to go cheap.
Mike
#8
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I don't get why 9.35:1 needs high-octane though, bikes run a lot higher than that on regular.
If you really want to drop your compression just add a shim under your heads when you next change the gasket, you can drop it but you'll lose power of course. Opening up the combustion chamber would also work. An any-fuel disco engine would rock.
If you really want to drop your compression just add a shim under your heads when you next change the gasket, you can drop it but you'll lose power of course. Opening up the combustion chamber would also work. An any-fuel disco engine would rock.