I get asked many questions about oil so I thought a thread here for all oil related questions would be a good idea and build into a FAQ or reference point for others.

So, put your oil questions here but please give the following information if you would like a recommendation:

Make
Model
Year
Engine size/type

Any mods

Type of use (road/track)

Additional info (max oil temps, current oil used)

What do you want a recommendation for? Engine, Gearbox etc?

I hope this will help and become a useful thread

Regards
Guy

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Hi Guy (lol)
Engine
2L 3S-GTE, Generation 3 I believe in a ST205 GT-Four

Mods - forged HKS pistons, ported head, high lift long duration cams. Balanced lightened bottom end

Possibly a slight lift of redline from 7250ish stock to 7500 to take advantage of cam duration

Current bhp is circa 310 with a hope for somewhere between 350 and 400 @ 1.5 bar on a large hybrid turbo (journal style bearing, not roller) and aftermarket ECU running 11-11.5AFRs. EGT (if it helps) expected to be 850Cish on full load. Torque hopefully somewhere in the same range

Will hopefully be seeing plenty of track action

Current oil temps peak at around 125C after 5 laps at which point it's coasting and cooling down time
I expect this to drop significantly down to the 80-1000C range with the fitment of a thermo controlled oil cooler. Coolant temps generally 76C if that helps at all and I'll probably keep the stock water to oil heat exchanger

Previously the car has run 10-50 Silko Pro S. It's currently on Millers XFS 5-40 due to me running out of Silkolene and the local shop only supplying Millers

Gear oil is Syntrans 75-90 all round. Operating temps are unknown

Hopefully it's all pretty good stuff already but would certainly appreciate any input on improving the fluids

Do you guys do brake fluid? Need to source some DOT 5 silicon based stuff

Cheers
Steve

Steve,

Sorry for the late reply on this. Switch back to the Silkolene Pro S 10w-50 for the engine and all would be good, the 5w-40 from millers will struggle at 125degc.

Silkolene Syn5 75w-90 for the gearbox and diff as you are already using.

Brake fluid, dont bother with dot5 Silicon, they are bad news. Dot4 such as the Motul RBF600 is ideal for track use.

http://www.opieoils.co.uk/c-450-brake-fluids.aspx

Cheers

Guy.

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Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40

cheers for the feedback!

I shall away and order another vat of Silkolene black gold

Actually its red

Cheers,
Mark

_________________
Mark - 94 Red Jap ST205 WRC - Gone but not forgotten
'06 Blue Merc E320 CDi v6
'89 Mica Blue MR2 Mk1b restoration project
"Don't make me come over there"

Depends which one, 5w-40 is gold the 10w-50 is purple.

Cheers

Guy.

_________________
Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40

Any advice on oil required, please feel free to ask as I can help you

You will also find some useful info on my website here

http://www.opieoils.co.uk/oil-and-filte ... oyota.aspx

All the best for 2009

Cheers
Guy

_________________
Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40

Anyone for some oil advice? Feel free to ask.

_________________
Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40

I've been using 10w 50 in my ST205 but have recently added bigger turbo (TD06), FMIC, Bigger injectors (800cc's), uprated fuel pump and ECU.

The car has been dyno'd @ 356BHP & 320ft/lb torque.

Would I still be ok with the 10w50 pro S? Oil temps are generally between 85 & 110 deg.

Thanks

Nathan

_________________
JDM ST205 WRC

Nathan,

I would stick with the Pro S, its ideal!

Cheers

Guy

_________________
Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40

Thank You

_________________
JDM ST205 WRC

Hi,

@ oilman

can you post a list of quality-codes from engine, gearbox and diff. oil's?

greetz

_________________
KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

Do you mean ACEA or API specs?

Cheers
Guy

_________________
Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40

Hi,

yes

greetz

_________________
KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

ACEA Specifications
(Association des Constructeurs Europeens d’Automobiles)

ACEA ratings are prefixed with “A” for petrol, “B” for light or passenger car diesel and “E” for heavy duty diesel.

The current specifications are:

A1 Fuel economy petrol
A2 Standard performance level
A3 High performance and/or extended drain
A4 Reserved for future use in certain direct injection engines
A5 Combines A1 fuel economy with A3 performance

B1 Fuel economy diesel
B2 Standard performance level
B3 High performance and/or extended drain
B4 For direct injection car diesel engines
B5 Combines B1 fuel economy with B3/B4 performance

E1 Non-turbocharged light duty diesel engines
E2 Standard performance level
E3 High performance and extended drain
E4 Higher performance and longer extended drain
E5 High performance and long drain plus API performances

API = American Petroleum Institute
S = Service - Petrol Engine Performance
C = Commercial - Diesel Engine Performance

PETROL

SG - Introduced 1989 has much more active dispersant to combat black sludge.

SH - Introduced 1993 has same engine tests as SG, but includes phosphorus limit 0.12%, together with control of foam, volatility and shear stability.

SJ - Introduced 1996 has the same engine tests as SG/SH, but phosphorus limit 0.10% together with variation on volatility limits

SL - Introduced 2001, all new engine tests reflective of modern engine designs meeting current emissions standards

SM Introduced November 2004, improved oxidation resistance, deposit protection and wear protection, also better low temperature performance over the life of the oil compared to previous categories.


DIESEL

CD - Introduced 1955, international standard for turbo diesel engine oils for many years, uses single cylinder test engine only

CE - Introduced 1984, improved control of oil consumption, oil thickening, piston deposits an wear, uses additional multi cylinder test engines

CF4 - Introduced 1990, further improvements in control of oil consumption and piston deposits, uses low emmission test engine

CF - Introduced 1994, modernised version of CD, reverts to single cylinder low emission test engine. Intended for certain indirect injection engines

CF2 - Introduced 1994, defines effective control of cylinder deposits and ring face scuffing, intended for 2 stroke diesel engines

CG4 - Introduced 1994, development of CF4 giving improved control of piston deposits, wear, oxidation stability and soot entrainment. Uses low sulphur diesel fuel in engine tests

CH4 - Introduced 1998, development of CG4, giving further improvements in control of soot related wear and piston deposits, uses more comprehensive engine test program to include low and high sulphur fuelsSG - Introduced 1989 has much more active dispersant to combat black sludge.

CI4 Introduced 2002, developed to meet 2004 emission standards, may be used where EGR ( exhaust gas recirculation ) systems are fitted and with fuel containing up to 0.5 % sulphur. May be used where API CD, CE, CF4, CG4 and CH4 oils are specified.

API Petrol Specifications and what you should look for

Petrol engine oil specifications begin with an "S". Any specification that begins with an S and some second letter after it is a specification for a petrol engine. SL, SJ, SH, SG, SF and so on are all specifications which define standards that petrol engine oils should meet in order for you to consider purchasing them for your car.

But which specification is best? Which one should you be looking for?

look for the one that has the "highest" second letter. In other words, the most current (and most stringent) specification is the API SL rating. If an oil meets this rating, it is up to date.

If your owner's manual calls for an SG rated oil, and you can’t find any oils that list the SG Rating, don’t worry. All API ratings are backward compatible. Therefore, an SL rated oil will be just fine for an SH, SG or SF rated vehicle. However, on a newer vehicle that calls for an SL rated oil, it is not recommended that you use an oil that does not indicate that it meets the SL standard.

One point about API specifications.

API specifications are minimum specifications for oils. They exist for your safety so that you have reasonable assurance that an oil will "adequately" protect your engine. However, these are not, by any means, a standard by which you could determine whether an oil was good or not. As an example, you'll find that even a cheap oil which costs next to nothing will most likely carry the API SL rating. That should tell you something about how hard it is to attain that rating.

Cheers

Guy

_________________
Use the code GT4DC and get 10% Club Discount
oilman's website: http://www.opieoils.co.uk/ - register for news and offers
email: sales@opieoils.co.uk
phone: 01209 202944 WD40