Buying a 2002 S Type 4.0 V8
Buying a 2002 S Type 4.0 V8
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Colvette

Original Poster:

844 posts

273 months

Wednesday 24th July 2013
quotequote all
I know they're not as good as the 4.2, but I do tonnes of miles, so want something fairly cheap that I can convert to LPG and just cruise up and down the motorway.

What should I look out for? What's going to sting me?

Car has 80k miles on it, no history, but MOT printouts to verify mileage. A fair few receipts for some recent work, comes with 1 year aftermarket warranty.

Is this a bad idea? I like the classic styling of the car and I'm a big fan of V8's, so was hoping with the LPG conversion this would end up being more economical than buying a larger engined diesel.

On a motorway run, at between 65 and 70 mph on cruise, what mpg can I be expecting?

Any advice much appreciated - I haven't seen the car yet, just researching before I do it...

P700DEE

1,190 posts

256 months

Wednesday 24th July 2013
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Early 4.0 S types have the earlier 5 speed ZF box rather than the much more reliable 6 speed as seen with the 4.2. You can buy a decent 4.2 for £3k and it will cost around £2k for the LPG conversion. I would not pay more than £1500 for a 4.0 and on another forum a buyer has just paid similar for a 4.2 all be it with 140K miles already. Great idea, I have not bothered with LPG as I can live with 29mpg average.

Colvette

Original Poster:

844 posts

273 months

Wednesday 24th July 2013
quotequote all
I need a car with at most around 80k to begin with, unfortunately. Can't find a 4.2 in the price range I need (circa 2-2.5k)

Are the 4 litres really that bad!?

Fat Albert

1,462 posts

207 months

Wednesday 24th July 2013
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The 4.0 in my XK8 is not bad at all!!!

Aston R

1 posts

155 months

Wednesday 24th July 2013
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Hi there. Just thought I'd mention that the pre-facelift (2002) S-Types all used the 5-speed Ford gearbox and not the ZF (as used in the X100 & X308). The Ford box was originally a 4 speed as used in the Scorpio but had an extra cog added for the Jag. The Ford box was never as good as the ZF unit but wasn't terrible either.
To be honest, I'd go for 3.0V6 with the 6 speed ZF box post 2002 facelift. With 240bhp and the extra gear it's not ultimately as fast as the V8 but if you're just cruising there isn't a huge difference. I worked extensively on the development of all S-Types from conception. My choice would always be a V6 post 2002 .... or else an "R" !!!

Benbay001

5,861 posts

183 months

Wednesday 24th July 2013
quotequote all
The 4.0 isnt just a different engine an gearbox.
The chassis and suspension is modified. The steering is modified and i believe the cabin is updated.

I have never been in a pre facelift. But from all accounts it is comparatively st.

HTH smile

Colvette

Original Poster:

844 posts

273 months

Wednesday 24th July 2013
quotequote all
Oh dear. frown This isn't sounding good at all.

So if I can somehow find a 4.2 (all of which I assume are facelift?), what MPG can I expect from that, pre gas conversion?

Benbay001

5,861 posts

183 months

Wednesday 24th July 2013
quotequote all
Colvette said:
Oh dear. frown This isn't sounding good at all.

So if I can somehow find a 4.2 (all of which I assume are facelift?), what MPG can I expect from that, pre gas conversion?
My "R" gets an average of 19mph with me driving like my hair is on fire (compared to your average driver)

Driven sedately on a trip from dorset to Beaulie in Hampshire (i was following another driver) i got a 26.6 mpg average which was a mix of roads.
On a 20 mile dual carriage way run, after resetting the trip at a cruise controlled 0.8 leptons i got an average of 32 MPG!
The faster the roads you use regularly the more bareable the car's consumption becomes compared to smaller engined' cars.
Mine changes gear at between 1500 rpm and 1900 rpm in normal driving.

The later ZF 6 speed has torque converter lockup in all gears. I have no idea what that does mechanically, all i know is that its great for fuel consumption. biggrin

The Leaper

5,545 posts

232 months

Thursday 25th July 2013
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I had a 4.0 for three years and did something like 75,000 miles and then I got a 4.2 which I've had for 9 1/2 years and done 120,000 miles. I would never go for a 4.0 again: the engine chain tensioners need changing before 100,000 miles (expensive), the interior is crap and full of Ford parts, the suspension is poor, and the gearbox is weak, to name a few things. Conversley, the 4.2 interior is what one expects from Jaguar, the 6 speeed auto is a substantial improvement, the suspension is far better, the engine is generally trouble free, etc. Put another way, the 4.2 is what the car should have been in the first place.

I have no plans to replace my 4.2, in fact I plan to keep it for the foreseeable futre.
R.

Six Fiend

6,067 posts

241 months

Thursday 25th July 2013
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Colvette

Original Poster:

844 posts

273 months

Thursday 25th July 2013
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Yes, I saw that one - called, but no answer. Also, was concerned with 'all paperwork gone' that meant the V5 too - could easily be a ringer...

Six Fiend

6,067 posts

241 months

Thursday 25th July 2013
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These days that's a fair assumption to start with before doing a lot of digging smile

LFB531

1,269 posts

184 months

Thursday 25th July 2013
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Heres my old 4.2 that I recently traded in that appears to be unsold;

http://www.solihullcarcentre.co.uk/used-cars/jagua...

The ONLY reason this went is I fancied an R, I had it from 80,000 and had just over 120,000 when I traded it. Dont be scared of the miles, It's had proper money spent on it.

Ask away if you're curious...and no, I'm not the dealer!

Fat Albert

1,462 posts

207 months

Friday 26th July 2013
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I am averaging about 24.5mpg from my XK8 4.0, some tanks I can get 26+mpg...and some less than 20, depends on my <ahem> driving style (I leave odometer 'B' to run up so that I can monitor overall averages)