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Q: tune-up on 2004 Jaguar XJR

what are the intervals for tuning up a 2004 jaguar xjr?
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Jaguar says to replace the spark plugs at 100,000 miles. I tend to go a bit lower - I would suggest getting factory plugs out around 60,000 miles.

This vehicle has coil-on-plug ignition too. The coil boots may need replaced when you change the plugs.
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