Which Oil for S2?

[TTM]

ORIGINAL: appletonn
Blimey, mine uses approx 1/3 litre of the stuff every 1000 miles...

Well, I can sell you my engine when the new one will be getting in ! [][]

 

[appletonn]

ORIGINAL: TTM

ORIGINAL: appletonn
Blimey, mine uses approx 1/3 litre of the stuff every 1000 miles...

Well, I can sell you my engine when the new one will be getting in ! [][]

I must just drive it faster than you.... [][]

 

[TTM]

That's what most pretend []

 

[oilman]

In reply to the original question, here is the info from our database, personally I would go for the all year round option........5w-40

I do not see 10w-60 mentioned here though, only SAE 30's 40's and 50's

Porsche, 944, 944 S2, 1988-1991
Manufacturer: Dr. Ing. H.C.F. Porsche KG, Stuttgart - Zuffenhausen, Germany
Drive type: r.w.d.
Cilinder capacity: 2990 cc
Petrol, 4-stroke, 4 cilinder, Line, 4 valves/cyl, liquid cooled
Cilinder capacity: 2990 cc
Power output: 211 HP/155 kW at 5800 RPM

Engine Capacity 6.5 liter
Plastic sump: 7.5 liter
Use: Normal
Change 20000 km/12 months

OEM recommendation
Above -10 API: SF SAE 20W-40
Above -10 API: SF SAE 20W-50
Above -15 API: SF SAE 15W-40
From -20 to 35 API: SF SAE 10W-40
From -25 to 20 API: SF SAE 10W-30
From -30 to 0 API: SF SAE 5W-30
From -25 to 40 API: SF SAE 10W-30
year-round API: SF SAE 5W-40
year-round API: SF SAE 5W-50

Transaxle, manual
Manual
Capacity 2 liter
Gears forward: 5
Gears reverse: 1
Use: Normal
Check 20000 km/12 months
Change 80000 km/48 months

OEM recommendation
year-round API: GL-4 SAE 80W, 80W-90, 75W-90

Hydraulic brakes/clutch system
Capacity 0.2 liter
Use: Normal
Check 20000 km/12 months
Change 24 months

OEM recommendation
year-round Brake fluid, DOT 3 or DOT 4

Power steering
Capacity 0.6 liter
Use: Normal
Check 20000 km/12 months

OEM recommendation
year-round Dexron IID -

Cooling system
Capacity 7.8 liter
Use: Normal
Change 24 months
OEM recommendation

year-round Water with antifreeze (ethylene glycol base)(50%) -

Cheers
Simon

 

[TTM]

Between the info shown in a database and years of feedback from experienced engine (re)builders, I know where my money is going.
For what it's worth I did 6k miles with Mobil 1 5W50 in my S2 and it did run like a bag of nails.

 

[Hilux]

A synthetic certainly works best in a hot turbo

Thats my view as to where a synthetic is a good idea, its probably the hardest working area for an oil, especially when the engine is switched off with regard to heat soak.

 

[944 man]

ORIGINAL: oilman
Transaxle, manual
Manual
Capacity 2 liter
Gears forward: 5
Gears reverse: 1
Use: Normal
Check 20000 km/12 months
Change 80000 km/48 months
OEM recommendation
year-round API: GL-4 SAE 80W, 80W-90, 75W-90

Two litres wont be enough: youll need 2.5 litres. Porsche made this mistake in some American users manuals and it seems to have stuck.

It was a cost limited car yes, and the Silkolene has been superb in every respect, apart from recorded oil pressure. The change was obvious immediately after the change, especially when properly hot (from virtually 3 bar to well under 2 bar) and this has been my principal concern. Oil consumption has been extremely slight though, even when used hard a Bruntingthorpe and on the autobahn.

The OPIE Oils stickers are still fitted, Im not sure what the signwriter made them out of..... []

 

[edh]

ORIGINAL: oilman

ORIGINAL: edh

It's a very odd field - or seems to be

I've found that castrol edge 10w60 disappeared from my engine at a rate of knots! - millers CFS 10w60 doesn't. I've also discovered that the oil pressure gauge in my turbo isn't entirely accurate - my oil pressure shows a drop as I get hard on the boost, which appears to be an electrical problem. I have a second gauge now that works just fine.

I've fitted some more cooling (track temps were approaching 130C) and will see how we get on with Silkolene 15w50 synth (I think that's right - it was from those nice people at Opie so it will be great [])

This illustrates my point, about the thickest oil money can buy and still dissapearing. Could be a basestock composition thing but see how you get on with ester/pao 15w-50

Cheers

I wonder if I had a sticking ring? - this was trackday & motorway use - no sign of smoke. The car hadn't been used much over last summer, & then went back on the road in the autumn. I used over 1.5 litres on a day at Donington, & then went through a couple of litres in 1-1.5k road miles. since then I've run the car for another couple of thousand miles & it has hardly used any - maybe half a litre or so. The top-up oil I used was Halford 5w50 synth.

 

[neil2849]

Hi again,
Thank's for all the info guys.....

Best wishes, Neil.