How many RPM at 60 MPH ?

Sounds about right on the gas mileage... ours get about 18 mpg.....as for the rpm... should be around 3000 at 60 miles an hour...

Fwed

I don't own one, so I can't speak from experience, but 3000rpm at 60mph sounds high to me. Calculating from the specs I found on the internet which said the X-Type has a transmission final drive ratio of 0.85, a differential ratio of 2.53, and uses tire size 205/65-16, I came up with about 1744 rpm at 60mph... that's reasonably consistent with an article I found on the S-type (yes, I realize we are talking about an X-type here) that says the S-Type reads

1500rpm at 60mph (and gets about 18.8mpg on average). But, perhaps I have a mistake or a wrong ratio in those calculations?

I would expect better than 18mpg on the highway ...see this page:

(you can click on the years)but, the two 2003 X-type owners reported very different mileage, andother years only have one owner reporting. also see:

I will have to do a run to see what mine is at when doing 60.....after I typed that, I thought maybe it wasn't that much.....will get back to you on this....

Fwed

I just checked my RPM at 60 MPH and it is 2150 so the 3000 RPM is definitely to high and the 1744 seems a bit on the low side. I think I will email Jaguar and ask them what it should be. If I get an answer I will post it here.

Double Tap

I agree... on mine it was just below the 2250 mark while going 60 mph. My initial estimate of 3000 rpm was wrong (as usual).....

Hope this helps...

Fwed

Thank you for contacting Jaguar Cars.

I regret that I cannot confidently respond to your question as we are not a technical facility. All technical questions, advice and recommendations are handled through our authorized dealer network. For the appropriate information, please consult your local Jaguar dealer. Either a parts or service advisor will be able to assist with this question or refer you to the appropriate individual. You can locate your closest dealer with your zip code on our website,

under the "locate a dealer" tab.

Sincerely,

Heather Baez Jaguar Cars

If you have any questions or require additional information, please feel free to contact us at 1-800-4-JAGUAR, option 9, or by e-mail.

Gee.. they don't seem to be much help huh??

Fwed

Did you expect otherwise ?

Not really, but still shakin head...you would at least think the person would make an effort to find the answer for you.. I mean it isn't a hard question...

Fwed

Since Ms. Baezworks at the customer relationship center, my impression is that her specific function is to terminate as many relationships with the owners of Jaguar cars as possible in the shortest possible time.

Double tap

Sounds like she is doing a wonderful job... think we should recommend her for a promotion?

Fwed

If she's *hawt*, maybe recommend her for a relationship ... ;^)

-- C.R. Krieger (Doing the math)

It's not hard math either. Set up a spreadsheet and plug in the numbers. Here's the technical stuff you need:

Transfer case ratio: 2.527:1

Transmission: Gear ratios:

First: 3.80:1 Second: 2.13:1 Third: 1.36:1 Fourth: 0.93:1 Fifth: 0.68:1 Reverse: 2.97:1

You'd need your tires' dynamic rolling radius to be precise, but a simple measurement of the static radius ought to be close enough.

I have a "rpms at speeds in gears" spreadsheet somewhere but I can't find it at the moment. I also don't have an automatic or your tires, so I'm not all that much interested in working up your numbers.

-- C.R. Krieger (Been there; done that)

We figured the rpms would be right around 2150 at 60 mph....we were just remarking how great a job the customer service rep was doing....

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