To SORN for the winter.....or not ?

Moderators:davidr, BigCatXJS, dhdove

Brakebuster
Posts:3145
Joined:Tue Apr 18, 2006 1:17 pm
Location:Gloucester UK
Re: To SORN for the winter.....or not ?

Postby Brakebuster » Thu Oct 03, 2013 7:00 pm

Vince,

PS. Great write up in the club magazine by the way!

why thank you ,
i hope i didnt bore too many peeps , lol , if so , you wont want to read next months instalment :?

BB 8)
1989 5.3ltr V12 XJS Coupé FULLY RESTORED
2015 2.2TD Sportbrake in BRG and black leather
1994 3.2S XJ40 in Morocco Red with Doeskin interior

old cars
1999 4ltr Sovereign XJ8
2004 X-Type

User avatar
BigCatXJS

Moderator
Posts:744
Joined:Tue Dec 30, 2008 10:35 am

Re: To SORN for the winter.....or not ?

Postby BigCatXJS » Fri Oct 04, 2013 4:00 pm

Hi Tony,

I was informed that the fuel can go a bit stale, so quarter of a tank allows fresh fuel to be added on the first day of spring. Happy to be corrected on this - as it's only what I have read.

Cheers, Rich
1989 Jaguar XJ-S V12 HE 5-speed manual
1994 Jaguar XJ40 Sovereign
2003 Jaguar S-TYPE R
2006 Jaguar XJ Sovereign TDVi
2007 Mercedes CLK350 Convertible
2010 BMW E92 3 Series Coupe
Past:
1996 Daimler Six LWB
2004 Volvo S60 D5 (RICA 210bhp)
1985 E28 BMW M535

User avatar
dhdove

Member
Posts:1539
Joined:Wed Sep 14, 2005 1:00 am
Location:South Gloucestershire

Re: To SORN for the winter.....or not ?

Postby dhdove » Fri Oct 04, 2013 5:05 pm

Hi Rich

Of course you're right, fuel does go stale with time, tho I think a winter layover of six months should be OK? My lawn mower starts and runs OK in spring and that's on fuel bought at the start of the previous spring.......tho maybe not the best comparison......

It's an interesting thought, corrosion vs fuel degradation......

I'm sure someone will jump in with some advice :D

Best
TonyS
XJS Bulletin Board Moderator
2013 Mercedes Benz SLK55 AMG, 420bhp. Plenty for me, thank you.

ptjs1

Member
Posts:3520
Joined:Thu Apr 27, 2006 7:14 pm
Location:Kent

Re: To SORN for the winter.....or not ?

Postby ptjs1 » Fri Oct 04, 2013 5:11 pm

It would be interesting if anyone has a definitive position on the condensation vs stale fuel options. I have heard arguments for both approaches. Certainly some years ago, the full tank approach seemed to be preferable, whereas the short shelf life of modern petrol certainly makes one want to fill up with fresh petrol after a layup. Or does keeping the tank completely full, stop the petrol going stale?

Any chemists / physicists want to venture a view?

BB, no apologies necessary for me for the article! Personally, I would love to have read it over 8 parts rather than just 2 parts!

Paul
1995 XJS 4.0 Convertible
1980 XJ-S Pre-HE
Jaguar 4.2 Supercharged engine (but not with a Jaguar body..)

davidr

Moderator
Posts:2464
Joined:Thu Sep 08, 2005 8:31 pm
Location:Salisbury, Wilts

Re: To SORN for the winter.....or not ?

Postby davidr » Fri Oct 04, 2013 10:00 pm

I personally would go the route of a full tank to make sure that there's no condensation and use a fuel stabilising additive if the car's not going to get much use for a good while - ie a winter lay-up on SORN.
regards
David
XJS FORUM COORDINATOR
1996 XJS Celebration Convertible 2001 XKR Convertible

Previously enjoyed!
1989 XJ-S V12 Coupe. 2006 XJ TDVi Sovereign. 1995 XJ6 3.2. 2013 XF 2.2d. 2009 X Type 2.0d Sovereign estate

poprivet

Member
Posts:1985
Joined:Mon Jan 16, 2006 3:20 pm
Location:Hampshire
Contact:

Re: To SORN for the winter.....or not ?

Postby poprivet » Sat Oct 05, 2013 9:08 am

I've never understood the condensation theory. A fuel tank in a car thats in daily use will never be kept full so what's the difference?

The only thing that seems to happen to my xjs if its not been used for months is that some of the injectors stick. 12V applied directly to them in the same way as a cardiac defibrillator seems to breath life back into them. :shock:

User avatar
BigCatXJS

Moderator
Posts:744
Joined:Tue Dec 30, 2008 10:35 am

Re: To SORN for the winter.....or not ?

Postby BigCatXJS » Sun Oct 06, 2013 11:28 am

Well, I took advantage of the fine weather yesterday and tucked the cat up in bed for its winter slumber. One thing I did note was a slight whining noise at tick-over. I checked all the levels (I had suspected the power steering fluid might be low) - all good. I'm now wondering if I've a bearing in a pump somewhere that's on it's way out. This will be added to the spring to-do list along with the moan/whine I've noticed at speeds 50mph+ (first induced/encountered during a spirited run home from Northern day). It would not be normal in the course of my 6 years of ownership not have spend during the spring! Just hope that it is nothing major.... Still, 25 years old next May so should not grumble... :D
1989 Jaguar XJ-S V12 HE 5-speed manual
1994 Jaguar XJ40 Sovereign
2003 Jaguar S-TYPE R
2006 Jaguar XJ Sovereign TDVi
2007 Mercedes CLK350 Convertible
2010 BMW E92 3 Series Coupe
Past:
1996 Daimler Six LWB
2004 Volvo S60 D5 (RICA 210bhp)
1985 E28 BMW M535


Who is online

Users browsing this forum: No registered users and 2 guests