Proby521

iTrader: (1)

I've got a '99 UK Turbo and I'm going to service it myself in the near future. Does anyone use MORRIS oils for engine/box/diff?? If so what specs do you use. I know someone who works for MORRIS, and going to ask there advice, but thought I'd ask on here first and cross reference information! Also does everyone use OEM oil/fuel filters? or are some of the japenese made 'blueprint items' as good?

Proby

Jolly Green Monster

iTrader: (4)

Oe oil filter most definitly yes.
Morris engine oil performs same as motul I have found.
Both v good.

silent running

Dunno about Morris, but I used Morrisons mineral oil for running in my engine LOL - £6 for 5 litres! On a more serious note though, use a genuine oil filter.

daz1968

iTrader: (13)

I have used there fully synthetic in my 03wrx and have no issues at all, just the price £18 for 5 litres was very good

joz8968

iTrader: (13)

For engine oil viscosity, use:-

10W-40
10W-50
15W-40
15W-50

BTW, the gearbox (incorporating the front/centre diffs) and the rear diff, both use 75W-90 oil. The one that most specialists advocate is Castrol Syntrac 75W-90.

eggy790

iTrader: (20)

what about 10w 60 joz?

millers cfs? i know a lot of people use that aswell? does the 60 really make a difference?

what oil do you personally use?

joz8968

iTrader: (13)

Oilman says that 60 hot viscosity weight is too thick for modern engines - check out his "16 questions on oil" thread in the Archive Topics forum - it explains the science behind it, etc.

Also, he says that 5W cold visc. is even better than 10W or 15W. Because it's thinner, it obviously flows quicker/more easily, on the crucial cold start-up phase.

So,

5W-40
5W-50

10W-40
10W-50

15W-40
15W-50

I'd personally opt for any of the ones in bold - prob best to use 10W-50 at this time of year.

Proby521

iTrader: (1)

Thanks for the input guys, was going to use 10W-40.

Question 2!

Am I really better off with FULLY synthetic or PART synthetic? I've heard different stories.

Proby

eggy790

iTrader: (20)

cheers

ill just get some motul 300v or silkolene pro s in 10w 50 then

id personally only go fully synthetic ester based oil

edit: the oils id get

http://www.opieoils.co.uk/p-1145-sil...e-engines.aspx

http://www.opieoils.co.uk/p-865-motu...cing-cars.aspx

eggy790

iTrader: (20)

second link sounds like proper track race oil for big bhp cars.. shame they dont do it in 10w 50 over 40?

suppose 40 will be fine anyway

btw. what does this mean in the motul race oil? "Engine producing medium fuel dilution in the oil."

joz8968

iTrader: (13)

Engines can get fuel past the rings and it contaminates the oil, no doubt altering its lubricating properties/viscosity... for the worst!

Really chronic cases and it can cause undesirable bore wash.

But what measurement "medium" is meant to convey, who knows...

joz8968

iTrader: (13)

10W-40 will be fine.

Fully will stay in grade for longer i.e. it's molecular structure is more resiliant to the literal mashing it recieives by the engine's reciprocating parts... So it protects the engine more effectively over any given time frame, than a semi.

Or to put it another way, you could go longer on oil/filter changes on a fully compared to a semi...

eggy790

iTrader: (20)

that 10w 40 motul 300v chrono race oil is double ester, sounds really good, might start using that, wud be fine every 3k

Proby521

iTrader: (1)

I'll go fully synthetic then, it's going to give better protection in the long run...

Thanks again!