Recommendations for oil in 2.5 kv6... - Page 2

Phil · 5th March 2009, 20:26

Quote:

Originally Posted by T-Cut

I've heard bad stories about that too. Remind us again Phil.

My favoured oil is Duckhams, it used to make my K4 Rovers sound like electric motors. The few times I have used Castrol Magnatec as it has been in the bulk tanks at work it has made the engine knock on start up from cold and made the engine rattle at light throttle when hot.
In the KV6 I have now, shortly after I bought it I went to work to do an oil change with my new oil filter. I drained the oil and went to buy some duckhams from the garage next door. Eyebrows raisedly they had stopped selling it so I had to use the Castrol out of the tank. I immediately noticed the initial roar after starting had stopped and was replaced by a chugging rattling. As soon as I get a chance, Duckhams will be back in there.

barry · 5th March 2009, 20:42

Seems a bit harsh Phil.

Although my ZT is low kms. (28000) I have had no ill effects or strange noises start up or otherwise from using Magnatec in my KV6.

regards
Barry

Phil · 5th March 2009, 20:52

Sorry, I don't mean to come across as slating Castrol. They are just my findings in my experience with using it in my Rover engined cars. I find it fine in Honda cars and others with manually adjustable valve clearances.

StevenWilliams · 5th March 2009, 21:15

Quote:

Originally Posted by T-Cut

Yes. I can't understand why Mobil 1 has such a large fan club amongst 75/ZT forumeers.

For the BMW Diesel engines it's great. Some BMW garages recommend the stuff.

I'm not convinced that using it is worth the risk with the KV6 engines.

If the car has not used fully synthetic oil form new then there will be some stuff in the engine that to be quite honest may actually be helping keep the engine running smoothly by adding extra sealing.
If you change from a semi synthetic to fully synthetic oil it is possible that the fully synthetic oil can actually dislodge some of the bits and actually make the seals less secure. This is mainly relevant on older higher mileage cars.

I have heard a few horror stories from users of higher mileage cars that when they put in fully synthetic oil they had leakages that were not visible before and it resulted in engine issues.

If you have a low mileage car that has always had good quality oil in and has been regularity serviced then the risk will be less. However why change from what the manufacture recommended for your engine? Rover stated 10W40 so that’s what I would use.

We know that Rovers are very specific on what fluids they like and don't like. Take the auto box's. If you use the wrong oil in them they will be screwed sooner rather than later and will not run as smoothly. The wrong coolants can cause corrosion and may be a contributing factor to HG failures.

Another reason for going fully synthetic is for longer change intervals. However I would think this is dependant on how you drive, where you drive and again how regularity you change the oil.

I do mainly town driving so I change the oil and filter every 6 months or 7500 miles whatever is lower. If you were driving on long motorway trips then the distance between oil changes can be far greater as the oil will be kept at a working temperature for longer periods and actually age less.

StevenWilliams · 5th March 2009, 21:17

Also don't think I'm stating Mobil 1 is no good.

It's just I don't see the point in spending double the money if you change the oil regularity and if you don't change the oil regularity then you don't care about the car enough to warrant spending the extra on the oil.

tazman3 · 6th March 2009, 07:22

i normally change the oil every 6 months and will use the mobil s 10/40 as recommended....

also just got the ZT last month...had the cambelt change done now onto to the oil and service.....

Thanks for all the advice....

e668ecp · 6th March 2009, 08:13

Quote:

Originally Posted by T-Cut

Yes. I can't understand why Mobil 1 has such a large fan club amongst 75/ZT forumeers.

Made my ZS 120+ sound like an electric motor.. thats all it ever had!

e668ecp · 6th March 2009, 08:13

Quote:

Originally Posted by Phil

Whatever you use, don't put Castrol GTX magnatec in a K series.

Totally agree made my old 414i sound dog rough after it was used to Mobil 1 0/40

e668ecp · 6th March 2009, 08:15

My ZT is coming up to 60000miles.

Should I have the gearbox oil changed and if so what type should I get? Money isn't a problem

Also what oil should it have in... its always had MG X-Power oil from Clemo in it... think it was 15/40 semi synthetic but not sure. What is the best?

5th March 2009, 20:52	#13
Phil This is my second home Rover 75 CDT Connoisseur SE Join Date: Nov 2006 Location: Wales Posts: 12,227 Thanks: 469 Thanked 523 Times in 241 Posts	Sorry, I don't mean to come across as slating Castrol. They are just my findings in my experience with using it in my Rover engined cars. I find it fine in Honda cars and others with manually adjustable valve clearances. __________________

5th March 2009, 21:17	#15
StevenWilliams This is my second home Rover 75 Saloon 2.5 V6 British Racing Green. 81,000 miles and counting Join Date: Apr 2008 Location: Crawley, West Sussex Posts: 6,183 Thanks: 0 Thanked 2 Times in 2 Posts	Also don't think I'm stating Mobil 1 is no good. It's just I don't see the point in spending double the money if you change the oil regularity and if you don't change the oil regularity then you don't care about the car enough to warrant spending the extra on the oil. __________________ [SIGPIC][/SIGPIC] Rover 75 2.5 2000 Club SE. British Racing Green. MEMBER NUMBER: MMMDCCXXVI Looking for: 7 seater

5th March 2009, 20:42	#12
barry Regular poster mg zt 180 sport Join Date: Oct 2007 Location: auckland Posts: 50 Thanks: 0 Thanked 5 Times in 5 Posts	Seems a bit harsh Phil. Although my ZT is low kms. (28000) I have had no ill effects or strange noises start up or otherwise from using Magnatec in my KV6. regards Barry

6th March 2009, 07:22	#16
tazman3 Posted a thing or two Mercedes C200 Join Date: Feb 2009 Location: Forres Posts: 1,499 Thanks: 1 Thanked 0 Times in 0 Posts	i normally change the oil every 6 months and will use the mobil s 10/40 as recommended.... also just got the ZT last month...had the cambelt change done now onto to the oil and service..... Thanks for all the advice....

6th March 2009, 08:15	#19
e668ecp I really should get out more....... Range Rover Evoque and ZT V8 SE Join Date: Feb 2007 Location: Yorkshire Posts: 2,232 Thanks: 20 Thanked 37 Times in 34 Posts	My ZT is coming up to 60000miles. Should I have the gearbox oil changed and if so what type should I get? Money isn't a problem Also what oil should it have in... its always had MG X-Power oil from Clemo in it... think it was 15/40 semi synthetic but not sure. What is the best?