Engine Oil, Car Oil, Gearbox oil, Gear Oil and lubricants for motorsport from Millers Oils

CFS 10w50

DESCRIPTION:
Competition full synthetic engine oil. Formulated with 100% synthetic base fluids, including a synergistic blend of three esters combined with latest additive technology for maximum performance.

APPLICATION:
Use as received for competition, modified and high performance engines.
Suitable for all normally aspirated and turbo-charged engines from 2 litres upwards.

USER BENEFITS:
• Fully synthetic oils provide many outstanding performance benefits over conventional mineral oils.
• By utilising both polyalphaolefins (PAO) and ester synthetics specially selected to minimise the amount of
polymer used, the lubricant film provided is more resistant to ‘shear’ and viscosity loss in highly stressed
areas.
Full synthetic oil provides:
• Load carrying capacity many times that of mineral oil.
• High film strength for ultimate protection.
• Outstanding cold flow properties for reduced wear at start up.
• Excellent thermal stability and oxidation resistance.
• The synergistic blend of three esters gives improved lubricity, reducing friction and enhancing the oils
performance.
• CFS 10w50 is especially suited to modified, high performance vehicles, with or without turbochargers, for fast road and track day use.

PERFORMANCE PROFILE:
• Manufactured to far exceed the requirements of API SL/CF and ACEA A3/A4.
• Suitable for operating at 125°C with peak temperatures up to 150°C.
• For fast road use or track days in engines where a 10w40 is normally specified.

TYPICAL CHARACTERISTICS:
SAE Viscosity Grade 10w50
Specific Gravity @15°C 0.869
Kinematic Viscosity @100°C 19.0cSt
Kinematic Viscosity @40°C 125cSt
Viscosity Index 205
Pour Point °C -25
Flashpoint °C 200
Cold Crank Viscosity@ -25°C 7,000cP

HEALTH AND SAFETY:
Health and Safety Data Sheet 6253 applies to this product. When used for the purpose recommended and with
due regard to the appropriate Health and Safety Data, the product should cause no concern. If in doubt, consult
with Millers Oils Technical Department.

 

My local motor factors stock this and advised on using it so thats good. What ratio ?
10/40

 

My local tunner uses 10/50 in mine.

 

ok thanks and nice scoob you have there

 

No problem, and thanks

 

I use silkolene pro s 10/50 in mine but I think any good quality 10/40 will be fine

 

Motul 300v 15/50 IIRC in mine.

 

This is the stuff you want:-

http://www.opieoils.co.uk/p-990-fuch...productDetails

About £13 (don't pay Opie Oil prices) .... no need to pay more .... change every 6 months ... sorted ...

 

semi synth i dont think so get ya money out and go for the millers 10-40 or 10-50 mate and stop being a tight 1 scoobs only deserve the best

 

just ordered the 10w50 millers would you go with subaru filter or bliitz ect?

 

i use genuine subaru filters for fuel and oil over three years and 30 thou hard driven miles no probs to report

 

Thanks mate

 

50 is way too thick ... like treacle, drains loads of BHP from your engine!!

 

i must be in the minority but i have had no issues with using gastrol magnatec 10/40,engine has 80k on it,ive done 20k of those,running 295 bhp so not major but enough

 

I use millers 10W 60

 

Now that is way too thick when hot drop back to using millers 10w40, you will find its better for your engine

Tony

 

The thing with oil weights is the no,without the w is at operating temp,which is meant to be 100 degree C,but on most of my journeys the temp is at 90-95 for alot of it,so im guessing my 10/40 oil is really 10/50 (as it doesnt get hot enough to thin to its lowest viscosity of 40)

and the guys using 10/60 if their oil doesnt hit 100 degrees C then really they are even thicker as it hasnt had chance to thin no lower than 60

its all complicated stuff !!!

unless i have totally mis understood the whole oil viscosity thing, probably !!!

ha ha

 

Well thats for a hawk!! I thought the thickness of the oil was in the 10W

Anyway a lot of the major Subaru tuning/servicing companies use Millers 10W 60.

 

10 is the cold oil temp, 60 the hot, it will take a few years for a 60 to get up there, hence stick to a 40 or 50
And just because "alot" of tuning co's use a 10w60 oil doesnt mean its correct or the best to use.
The people who have tested this engine more than all those companies added together is FHI

Tony

 

yeh what oil to use is a minefield!! I thought the idea of the 10W 60 was so it did not break down at temperature and oil thins when hot.

Subaru themselves recommend 5w 30 but nobody uses that???

 

oil thins when its hot but the tested temp is 100 degrees c,so a rated 10w/60 oil will not get any Thinner than 60 when its upto temp,(100 degrees c)so its always going to be thick,hence what i was saying about a 10/60 oil at -5 being very thick and taking a long time for the engine to get to 100 degrees so its going to be like treacle in the block on a short journey when in the - temps

 

Right frig its coming out tomorrow!! Would mobil 1 10w 40 be better??

Thanks for the advice by the way

 

shell helix plus 10w 40 is wat i use and no problems

 

60 is truly madness for a road car ...... 40 is fine - 60 at these winter temperatures is a hell of a drag on your engine and power sapping.

I used 50 in my Calibra one year ..... the engine felt so lazy and revved slower than normal - switched back to 40 and it was like a sewing machine ..... the difference was so noticeable.

Unless you are tracking your car on the equator in a 24 hour endurance trial, forget 50 or 60 ...... stick with what Subaru says - 40!