Spark-plugs And Coolant

therzl said:

I own a '96 Cobra with 110k miles. The engine is stock and non-aspirated. It needs new plugs. Is there any particular type/brand that will provide me the best performance (e.g., platinum)? Also, the radiator is a Fluidyne and the coolant needs replacement. Is there a preferable type/brand and should I add a corrosion/rust inhibitor (also type/brand?)? Thank you very much.

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The best spark plugs for performance would be copper spark plugs but, they don't last as long. The best spark plugs for longevity would be platinum spark plugs. I highly recommend using Motorcraft spark plugs on our cars. Factory torque spec is 12-15 ft. lbs using a torque wrench. That is barely more than hand tight. I would just use antifreeze and no additives. I always use Peak or Motorcraft antifreeze in my Fluidyne radiator.

therzl said:

I own a '96 Cobra with 110k miles. The engine is stock and non-aspirated. It needs new plugs. Is there any particular type/brand that will provide me the best performance (e.g., platinum)? Also, the radiator is a Fluidyne and the coolant needs replacement. Is there a preferable type/brand and should I add a corrosion/rust inhibitor (also type/brand?)? Thank you very much.

Click to expand...

If you flush and refill your cooling system on time you should not have to worry about unwanted rust/corrosion in your cooling system. I have always used 50/50 antifreeze.