Hi all,

I have been advised by Ford to use 5/30 fully synthetic oil on my RS Turbo but feel that this is too thin. Whats the best grade to use?

Cheers
Dave

 

Here we go again!

is it modifyed?

how do you drive it?

milage?

mines a high miler,extensively modifyed 200+bhp and i drive it like i stole it most of the time!

im useing silkolene 10-50w pro s (i think its called that) fully syn race oil!


but you will find the vast majoirty are useing mobile 1 15/50! or castrol rs 10/60w

 

Its a standard engine rebuilt about 600 miles ago. New cam, pistons etc. Standard engine. Like to have a race now and again. Used every day sat in traffic.

Cheers
Dave

 

what did ya engine builder recomend?!

or you build it??

and if it was only rebuilt 600 miles ago you should still be useing minrel oil!

ment to run them in for 1000 miles then swap to syn oil and oil filter!

and ford put 5/30w in them from the start so if ya engine like brand new! 5/30 should be fine!

but if ya worried got with a 10/40! but i would say speak to a few tuners on here!

stu,karl(if ya ever see him) paul hills,chrstian and beccy of apt!

 

I built the engine. I have spoken to a few people about this and apparently 5/30 oil wasn't even out when Ford built the RS Turbo. They only changed it to this type after the Zetec engine was brought out. This is only what I have been told though. Think I will go with a 10/40 oil just to be safe.

Thanks for the input.

Cheers
Dave

 

im running 10/40 on a standard engine m8!

castrol gtx!?

 

wait stop the ford stuff is shite, i was reccomended that by ford used it it was crap, then switched 2 mobil 1 15 50 runs alot quieter good stuff, evn if u dnt use it stay away from the ford stuff

 

Use a fully synthetic 10w-40 or 10w-50 and you'll not go wrong.

In general 5w-30 has been specified since around 2000, it isn't necessarily suitable for your car.

Take a look at Silkolene and Motul on my website:

http://www.opieoils.co.uk/lubricants.htm

Cheers
Simon

 

what about valvoline think its about 20/50 ? thats what i got told to use

 

im using mobil 10-40 which works fine

 

Valvoline are cheap and chearfull, the 20w-50 is a basic mineral oil, I would not put it in a performance car.

Cheers

Guy.

 

Oil man, what would you use??? in an ERST

Cheers

 

If I wanted the best protection for my money then I would use Silkolene PRO S 10w-50 or Silkolene PRO R 15w-50.

I would want the benefits of esters in my oil to protect the engine at all times

Esters

All jet engines are lubricated with synthetic esters, and have been for 50 years, but these expensive fluids only started to appear in petrol engine oils about 20 years ago. Thanks to their aviation origins, the types suitable for lubricants (esters also appear in perfumes; they are different!) work well from –50 degC to 200 degC, and they have a useful extra trick.

Due to their structure, ester molecules are “polar”; they stick to metal surfaces using electrostatic forces. This means that a protective layer is there at all times, even during that crucial start-up period. This helps to protect cams, gears, piston rings and valve train components, where lubrication is “boundary” rather than “hydrodynamic”, i.e. a very thin non-pressure fed film has to hold the surface apart. Even crank bearings benefit at starts, stops or when extreme shock loads upset the “hydrodynamic” film.

Cheers
Simon

 

Using Castrol TWS Motorsport 10w-60, but Silkolene PRO S is better?

 

Im on silkolene pro S! engine seems fine! and it gets a good caning! but at Ł40 a tub it aint cheap!

 

Yes it is, the Castrol is a hydrocracked mineral oil and the Silkolene is a true synthetic, The Silkolene is in a different league.

Cheers

 

Nice one oilman! Thats cleared up a few things for me too! Now to find a supplier

 

I am a trader here, send me a mail to Sales@opieoils.co.uk and I will forward a price list on to you.

Cheers

Guy.

 

i used 5/30 in mine!

 

The Castrol RS 10w-60 and Castrol TWS Motorport 10w-60 isn't the same oil? Castrol TWS Motorsport is extremly popular with Cosworth owners here in Norway. Nobody uses Castrol RS.

 

Yes you are quite right, the TWS is slightly different to the RS as it uses higher quality base stock, however here in the UK the TWS is only available through BMW dealers at a very high price and Castrol will not sell it direct to the public.

We have had both the RS and TWS chemically tested along side Silkolene and others, compered to the Silkolene Pro S the Castrol TWS still does not come close.

Cheers

Guy.

 

I have a series 1 and so do I

 

I hope you both drives carefully and preferably are underboosting. Never step on the throttle.

 

What about Mobil1 15w-50 and 5w-50, are they 100% synthetic? The 100% synthetic base stock is called Group IV which Silkolene uses, while a more refined mineral base stock like Castrol uses is called group III, is this correct?

 

I'm afraid group III is hydrocracked.

Silkolene uses Group IV and V in the PRO products and these are the best.

This is how the Groups work:

These are the API base oil classifications which are used for base oil interchange and blending guidelines. They are based on sulphur content and saturate level. Saturate level refers to the carbon - carbon & carbon - hydrogen bonding mechanism within the molecule; high saturates considered to give a more stable product and to be generally more beneficial.

Conventional solvent refined paraffinic stocks as used in vast majority of formulations are Group 1. Group 2 not normally available in the UK. Group 3 are the high VI hydrocracked stocks.

All PAOs fall into Group 4. Group 5 is anything else, usually esters.

Cheers
Simon

 

So all Castrol fully synthetic oils are based on a group 3 base (which is alot cheeper than group 4/5)? What kind of base does Mobil1 5w-50 and 15w-50 use?

 

Not all, some are group 4.

RS 10w-60 is group 3 though.

Mobil 1 is group 4 (PAO).

Hope this helps
Simon

 

i use 10-40

 

So does my mom.