OrionRST200bhp

iTrader: (1)

whats the best oil to use for my car? my car taps like an old banger, i think i may have the wrong oil in it. but ive been led to believe that saff cossie's do tap alot, why is this?it sounds horrible. i dont wont to spend stupid money on oil, i think ive got castrol edge in it at the moment. cheeRS

martysmartie

iTrader: (1)

Hi m8,

I personally use 15/50 in my 2WD but same applies to 4x4, I really do not see the point in expensive Castrol Edge 10/60. I certainly would NOT go lower than 10/60.

As to the tapping sound does it only do it briefly when started from cold or even when its warm, they all do this from cold.

Have you got an in car oil pressure gauge if so whats the pressure when both hot and cold and also the millage of the car?

The reason for the tapping is the hydraulic lifters that are filled with engine oil when started from cold the oil needs to circulate around and fill the lifters.

2WD had a offset gudeon pin and as a result suffer from "Piston Slap" the design was changed on 4x4 and hence they do not suffer from this problem.

When was the last oil change as it may be the top end is sluged up.

If oil and oil pressure are good I would say a new set of lifters may be in order.

tabetha

A 15W/50 IS lower and thinner when hot than a 10W/60.
Castrol edge is not that good, would be much better off with either Silkolene Pro S 50 weight or Mobil 1 from Matt Lewis, at a very good price, 01922 692424.
Depending on your mileage it is most likely that tappets are either knackered or gummed up with varnish.
Either way it might pay to try some valve system lube from Wynns as this will de varnish them as best it can, the actual oil pressure is held in by a steel ball bearing being pushed by a tiny spring against it's seat.
A tapping on first start is fairly normal, and nothing to worry about.
How many miles has it done, new tappets are about Ł70 from matt lewis, genuine INA ones, easy to change, might as well do belt tensioner at same time too, if a bit old ?
4wd pistons have a slightly revised wrist pin as said, but soem do still suffer when cold, though it is harmless anyway, untill it does it when warm like mine!!
tabetha

Glenn_

iTrader: (1)

silkolene pro rs oil is good oil. Ive used it twice now and its been ok. Im using ford valonle 10/50 oil at the moment cause i got 8 litres off my mate who works at ford for 20 quid. When my cossie 4x4 first starts up its quiet for about 1 minute then the tappets start to get noisey give it another 5 mins and the noise goes away.

C4llyT

No wonder people get tapping with such thick oil.
Don't know why cossie engines are so different to all others, I'd use 5w40, good protection from cold, and not so thick when hot to raise temps.
People think thicker equals better.

Edit/ Another vote for silkolene pro.

paul16v

Silkolene pro s 10w50.

Captain500rs

i got told to use 5/30 a think it is mine is this any good?

pete mcrash

iTrader: (1)

i've allways used mobil 1 15/50...(3 1/2 years)............but as my supplie runs out i think i'll get some silky pro 10/50 and try it............

OrionRST200bhp

iTrader: (1)

hi guys thanks for the replys, the tappets were changed when i rebuilt the engine last january nearly a year ago to the day. my car always taps from cold always has done well in the 2 years ive owned it. but its been tapping alot when warm. all my mates with there bmw's and jap crap keep saying take it to the scrap yard go jap, blah blah blah, i may try 15/50 silky next. i was always told thin oil on cossie's running high power is a big no no. is this true??

JTECH James

iTrader: (13)

pro s....

ECOS95

Same here.

C4llyT

Dunno, presume they say use thicker oil to cope with extra heat.
Thicker oil will create extra heat also however as it's being worked/squeezed harder through tolerances etc.
5w40 is an every oil, changed regularly do you fine.
Fuchs is a good oil at a good price, from gsf.

JamesH

iTrader: (21)

Don't bother

I'd always used same as you, tried Silkolene and it start to burn oil

Changed back to Mobil 1 and been perfect again since, doens't burn a drop

pete mcrash

iTrader: (1)

......Mmm..........

lozi

+1

thats what i always use

JTECH James

iTrader: (13)

pro s has 20 or 30 degrees extra capability before it breaks down.


on track most of the mobil1 and castrol ends up spewing out the breathers!

C4llyT

Sure oil man will tell which is far superior out of silkolene and mobil1....
Silkolene always went in my M3, very good oil.

Jimboxr4x4

Silkolene is a proper fully synthetic oil unlike Castrol. Not sure whether Mobile 1 is. Read Oilman's explanation threads as apparently some oils claim to be fully sythetic but are infact hydrocracked mineral oils. I've just switched from Castrol edge 10w60 to Silkolene Pro 10w50 and been very impressed. The oil pressure is the same and for some reason it didn't burn any oil at all on a 500 mile round trip where as the Castrol would have used a good 1/4 litre.

ybturbo

Hi guys this is my first post and i would like to say that I had the same problem with my car: noise from tappets and low oil pressure when warm and all of these gone away when I started using Motul 300V 20-50W.
Also do not use oils with lower viscocity less than 15 on cosworths because YB by it's nature is operating at high oil temperatures and anything less than 15 is becoming too thin. If your engine has high mileage you can use Motul 20-60.

LHD220Turbo

iTrader: (4)

silkolene pro s 10/50

the "oilman" on here recommends it; just do a search for posts by oil man, what they dont know about oil's isnt worth knowing

martysmartie

iTrader: (1)

A article from oilman about 10-60W
https://passionford.com/forum/technical-essay-archives/86789-10w-60-my-reasoning-an-explanation.html

silky16v

iTrader: (1)

arh NO! far too thin when cold and bloody useless once warm especially in a modified engine

C4llyT

5w30 is still very thick when cold.