Is it still ok to use 5w30 oil in a xtrail that has done 185 thousand miles.Garage suggested a thicker one.What say you.Regards Baz
Pete .Thanks for the good info .I already use Magnatec.So i think i will stick to what i am using Regards Barrypete-H said:hi baz i would say thicker oil theoreticlly would make things less noisey but on a diesel? noise anyway, second if the engine is worn then its natural to assume outher parts are worn to i.e the oil pump and assotiated bits surly they would work harder? and my last consern the turbo oil fed thicker oil moves slower maybe, its all probably nothing to worry about as most damage is caused on start up why not try one of thoes fancey magnatec oils? or make sure everythings nicely wormed up before moving off helping with a few revs dont go over 3 thousand rpm.
Thank you for the reply. I will do as you suggest and when i change the oil again soon i will try Magnatec 5w40 Regards BarryAvocet said:Usually, the first effect of excessive wear that you'd notice, might be the oil pressure light taking a bit longer to go out - or maybe flickering on a bit at idle after the engine has been working hard (e.g. a fast run on the motorway and then idling at the top of a sliproad). If none of that is happening, there's no particular reason (in my opinion!) to move to a thicker oil.
However, plenty on here use 5W40 oil (myself included) and reckon it makes the diesel engine just that bit less harsh and rattly. The penalty is higher fuel consumption, but I doubt it would be measurable - it hasn't been for us! Certainly, 5W40 will do it no harm at that mileage.
The only thing I WOULDN'T do, is change the first number (the cold viscosity). Don't go to a 10, stick with the 5. You want the oil as thin as possible at cold start, to get round the bearings (especially the turbo) quickly.
Thank you for the advice.I have seen the Comma and Titan ,i will try one of these Regards BarryUmbongo said:Hi Barry,
I have been using this for the last five years I did used to use Comma oil 5w-40s but have been happy with Fuchs-5W-40-Titan-SuperSyn-Fully-Synthetic :thumbs:
https://www.ebay.co.uk/itm/Fuchs-5W-40- ... 41f0dc90ec
You dont need to use C4 rated oil. That is a low ash oil designed for modern vehicles with dpf's and 3 way cats.rufusbarry said:PS Is all 5w30 C4 Oil good for our Xtrails.Bazrufusbarry said:Is it still ok to use 5w30 oil in a xtrail that has done 185 thousand miles.Garage suggested a thicker one.What say you.Regards Baz
Avocet.Thank you kindly for the very good advice.I shall do as you suggest and stay with the 5w30 fully synthetic.Merry Christmas to You and Your Family.Regards BarryAvocet said:Usually, the first effect of excessive wear that you'd notice, might be the oil pressure light taking a bit longer to go out - or maybe flickering on a bit at idle after the engine has been working hard (e.g. a fast run on the motorway and then idling at the top of a sliproad). If none of that is happening, there's no particular reason (in my opinion!) to move to a thicker oil.
However, plenty on here use 5W40 oil (myself included) and reckon it makes the diesel engine just that bit less harsh and rattly. The penalty is higher fuel consumption, but I doubt it would be measurable - it hasn't been for us! Certainly, 5W40 will do it no harm at that mileage.
The only thing I WOULDN'T do, is change the first number (the cold viscosity). Don't go to a 10, stick with the 5. You want the oil as thin as possible at cold start, to get round the bearings (especially the turbo) quickly.
Pete Thank you for the good advice.Regards Barrypete-H said:hi baz i would say thicker oil theoreticlly would make things less noisey but on a diesel? noise anyway, second if the engine is worn then its natural to assume outher parts are worn to i.e the oil pump and assotiated bits surly they would work harder? and my last consern the turbo oil fed thicker oil moves slower maybe, its all probably nothing to worry about as most damage is caused on start up why not try one of thoes fancey magnatec oils? or make sure everythings nicely wormed up before moving off helping with a few revs dont go over 3 thousand rpm.
Milton Thank you very much for the advice.I shall do as you suggest.Regards Barrymilton said:You need 5.7 litres for a full oil change so you would need to mix them anyway. I would not mix oils, however, if you must then use 5 litres of 5w40 and top up with the 5w30.
Avocet Thanks again for the advice .I did not know about all the different grades.I shall have a look to see what oil grades i have Regards BarryAvocet said:I'm with Milton. They're probably not even the same brands with the same additive package. You'll end up with an engine that is full of neither one thing nor the other. Unlikely to do any actual harm (assuming your 5W40 is the correct grade - which, according to my handbook, needs to be ACEA grade B1, B3 or B4), however, I use a Grade C3 - which although our car doesn't have a DPF, at last makes me think I'm probably doing the cat a good turn!
Thanks for the answer Colin.ÂŁ11 For four litres fully synthetic .....freepost isnt bad .Shall get another one Regards BarryColster said:That will be fine Barry, but you need around 5.5 litres for a full oil and filter change.
Colin
PS Have just got my money back from Ebay as it was a compromised site,,whatever that means .Barryrufusbarry said:Thanks for the answer Colin.ÂŁ11 For four litres fully synthetic .....freepost isnt bad .Shall get another one Regards BarryColster said:That will be fine Barry, but you need around 5.5 litres for a full oil and filter change.
Colin
Thank you again for the advice .RegardsAvocet said:Should be fine. (Although I prefer the 5W40 myself).
This is a good website - just put your registration number in and it will do the rest:
https://www.opieoils.co.uk/c-681-car-engine-oil.aspx