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What is your question?
what are the intervals for tuning up a 2004 jaguar xjr?
2 Replies
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.
63,741 miles