which oil for a diesel?

macafee2 · 22nd October 2012, 10:31

what oil would best suite the needs of my Rover 75 2006 diesel CDT?
The handbook says 5w/30, 5/w40, 0w/40 so a choice

I dont use the car much and may sit for a few weeks without being used. it will tow a caravan from time to time and lives in the south of england. probably wont go over 80...even without the caravan

but with the caravan will try to tow at the speed limit unless climbing hills so will be slower.

Should I go for Castrol, liquid engineering...love the advert, Mobil, Shell or something else and what viscosity? needs to meet ACES A3 and B3 spec.

thanks for the advise

macafee2

Evansabove · 22nd October 2012, 13:21

My handbook says: Diesel engines: 10W/40 or 15W/40 engine oil meeting both
ACEA A3 and ACEA B3 specifications.
Oils manufactured to the above specifications are suitable for
use in temperatures between -20°C to +30°C (if climatic
temperature falls outside these limits, seek advice from your
dealer).

I used Asda's own Semi synthetic 10W/40 when it was on offer last time and it seems to be fine. My car has done 174,000 miles and does not use any oil between services which used to be 15,000 miles when I was a commuter but is now a lot less now I have the best job ever! Retired!

The oil meets the ACEA A£ and B3 specifications so why buy dearer oil because it is a well known brand, you are only paying for advertising and sponsorship.

HTH

John

MangoMan · 22nd October 2012, 13:27

Whatever you decide, (not Castrol in my opinion) EuroCarParts have 25% off if you use promo-code PARTS25

(My particular choice).
http://www.eurocarparts.com/ecp/c/Ro...2481&0&cc5_245
or..
http://www.eurocarparts.com/ecp/c/Ro...2471&0&cc5_248

Ciao.

rovexCDTi · 22nd October 2012, 13:51

Well im glad you have the corrected handbook with the right viscosities in it. Id probably go for a 5W40, its the most readily available. Dont be concerned by brand, its mostly marketing and there is no evidence one is better than the other.

Because you have a diesel give this a try. It greatly exceeds the spec we need meeting the highest requirements in the car industry, and is good value. You also get a free filter at the moment. Remember though that you need 6.8 litres in this engine!!

http://www.eurocarparts.com/ecp/p/ca...6081&0&cc5_248

Dont forget to use the code PARTS25 for 25% off (as well as the free filter).

Adam A · 22nd October 2012, 17:18

When I bought my 75 CDT I've changed oil for Valvoline 10w40... it was OK for few weeks, but when it become cold in the morning after starting the engine it was working like VWs TDI (and it was ok after 2-3min)... Changed oil for the one advised by BMW for this engine - 5w30 with BMW Long Life cert. ... No problem now and engine seems to rev more freely.

Richard Garner · 22nd October 2012, 17:50

I put 5 w40 fully synthetic in mine. Brand doesn't really bother me but the price does!!

steveharvey2001 · 22nd October 2012, 18:52

Don't forget that you will need over 6 litres each oil & filter change, so you will need more than one 5L can.

ProfDave · 22nd October 2012, 18:55

5W 30 for me; and I am not afraid of the dreaded magnatec. Castrol always been fine for me; the lower viscosity I feel helps a bit with MPG and I do not use any oil even at near 100k.

bl52krz · 23rd October 2012, 21:41

I have always used Castrol Magnatec 10/40. with no problems, and does not use any oil between oil changes.

rovexCDTi · 23rd October 2012, 21:45

The correct, thinner oils will save a little fuel, more than the extra cost of the oil that's for sure.

22nd October 2012, 10:31	#1
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,990 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	which oil for a diesel? what oil would best suite the needs of my Rover 75 2006 diesel CDT? The handbook says 5w/30, 5/w40, 0w/40 so a choice I dont use the car much and may sit for a few weeks without being used. it will tow a caravan from time to time and lives in the south of england. probably wont go over 80...even without the caravan but with the caravan will try to tow at the speed limit unless climbing hills so will be slower. Should I go for Castrol, liquid engineering...love the advert, Mobil, Shell or something else and what viscosity? needs to meet ACES A3 and B3 spec. thanks for the advise macafee2

22nd October 2012, 13:27	#3
MangoMan This is my second home Looking.... Join Date: Oct 2010 Location: England Posts: 10,911 Thanks: 862 Thanked 1,111 Times in 868 Posts	Whatever you decide, (not Castrol in my opinion) EuroCarParts have 25% off if you use promo-code PARTS25 (My particular choice). http://www.eurocarparts.com/ecp/c/Ro...2481&0&cc5_245 or.. http://www.eurocarparts.com/ecp/c/Ro...2471&0&cc5_248 Ciao. __________________ *Regards, Bill - (MangoMan).* (Member 00854) http://i1110.photobucket.com/albums/...d.jpg~original Last edited by MangoMan; 22nd October 2012 at 15:22..

22nd October 2012, 13:51	#4
rovexCDTi This is my second home MG ZT+ 135 Join Date: Jan 2011 Location: Exeter Posts: 3,626 Thanks: 9 Thanked 42 Times in 26 Posts	Well im glad you have the corrected handbook with the right viscosities in it. Id probably go for a 5W40, its the most readily available. Dont be concerned by brand, its mostly marketing and there is no evidence one is better than the other. Because you have a diesel give this a try. It greatly exceeds the spec we need meeting the highest requirements in the car industry, and is good value. You also get a free filter at the moment. Remember though that you need 6.8 litres in this engine!! http://www.eurocarparts.com/ecp/p/ca...6081&0&cc5_248 Dont forget to use the code PARTS25 for 25% off (as well as the free filter). __________________ [SIGPIC][/SIGPIC]

22nd October 2012, 18:52	#7
steveharvey2001 Loves to post Mini Cooper SE Join Date: Mar 2008 Location: Worcester Posts: 369 Thanks: 39 Thanked 40 Times in 32 Posts	Don't forget that you will need over 6 litres each oil & filter change, so you will need more than one 5L can. __________________ "How can one little insulated wire bring so much happiness?!" Homer J Simpson

23rd October 2012, 21:41	#9
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,434 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	I have always used Castrol Magnatec 10/40. with no problems, and does not use any oil between oil changes. __________________ Great Barr, Birmingham.

22nd October 2012, 13:21	#2
Evansabove Loves to post Rover 75 CDT Conn SE Join Date: Mar 2008 Location: Bournemouth Posts: 272 Thanks: 1 Thanked 6 Times in 6 Posts	My handbook says: Diesel engines: 10W/40 or 15W/40 engine oil meeting both ACEA A3 and ACEA B3 specifications. Oils manufactured to the above specifications are suitable for use in temperatures between -20°C to +30°C (if climatic temperature falls outside these limits, seek advice from your dealer). I used Asda's own Semi synthetic 10W/40 when it was on offer last time and it seems to be fine. My car has done 174,000 miles and does not use any oil between services which used to be 15,000 miles when I was a commuter but is now a lot less now I have the best job ever! Retired! The oil meets the ACEA A£ and B3 specifications so why buy dearer oil because it is a well known brand, you are only paying for advertising and sponsorship. HTH John

22nd October 2012, 17:18	#5
Adam A Newbie Rover 75 Club Join Date: Aug 2012 Location: Worcester Posts: 22 Thanks: 0 Thanked 0 Times in 0 Posts	When I bought my 75 CDT I've changed oil for Valvoline 10w40... it was OK for few weeks, but when it become cold in the morning after starting the engine it was working like VWs TDI (and it was ok after 2-3min)... Changed oil for the one advised by BMW for this engine - 5w30 with BMW Long Life cert. ... No problem now and engine seems to rev more freely.

22nd October 2012, 17:50	#6
Richard Garner Regular poster MG ZT-T CDTi Xpower Grey, MG ZT 190se Pearl Black Join Date: Oct 2010 Location: Lincoln Posts: 79 Thanks: 0 Thanked 0 Times in 0 Posts	I put 5 w40 fully synthetic in mine. Brand doesn't really bother me but the price does!!

22nd October 2012, 18:55	#8
ProfDave This is my second home ZTT, Contemp Saloon, Duotone Tourer Join Date: May 2012 Location: Llandeilo Posts: 4,192 Thanks: 290 Thanked 387 Times in 333 Posts	5W 30 for me; and I am not afraid of the dreaded magnatec. Castrol always been fine for me; the lower viscosity I feel helps a bit with MPG and I do not use any oil even at near 100k.

23rd October 2012, 21:45	#10
rovexCDTi This is my second home MG ZT+ 135 Join Date: Jan 2011 Location: Exeter Posts: 3,626 Thanks: 9 Thanked 42 Times in 26 Posts	The correct, thinner oils will save a little fuel, more than the extra cost of the oil that's for sure. __________________ [SIGPIC][/SIGPIC]