Engine temp on my Jag.........

[David Bryce]

For some reason the engine temperature on my Jag (according to the gauge) only seem to come out of the blue when sitting still or in traffic and even then it takes ages to get into the 'normal' range. As soon as I drive for more than a few minutes it goes back down almost as far as it can into cold.

Any thoughts? something I should worry about?

[Shug]

Sounds like a bust thermostat - it's just cooling all the time, not maintaining temp. Running too cool will be chewing fuel and can't be great for it...

[David Bryce]

thought as much thanks, will get my friendly mobile mechanic to replace it and hopefully my MPG will improve from an average of 17

[Shug]

Yeah, you should get at least 18 out of an XJ6

[Dominic]

thought as much thanks, will get my friendly mobile mechanic to replace it and hopefully my MPG will improve from an average of 17

I use to manage a fleet including 4 XJ6s and 2 XJ8s. Love the cars... but they are thirsty buggers. MPG into single figures if you try hard enough

17 - 23 mpg is about average.