924Board.org

[FFNPMcD]

About to do an oil change in a 87 924s I picked up. Im not to sure what was used previously for oil and car didn't come with an owners manual.
Can anyone tell me what the capacity is?
What weights and brands are you using?
Synthetic or non..

Thanks,
Neill
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1987 924s

[fiat22turbo]

for the 924S/944 2.5L 20w50 is the recommended weight. The brand and type is up to you, but I'd recommend a good synthetic. Everyone has their own opinion on brand, etc. Most important is changing the oil routinely.

http://www.clarks-garage.com/shop-manual/eng-17.htm

approximately 6 quarts.

I would keep this site handy for future maintenance items:

http://www.clarks-garage.com/shop-manual/repair-procedure-index4.htm
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[FFNPMcD]

Thanks for such a quick reply!
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1987 924s

[Grenadiers]

There are a million threads out there on oil preferences. See the Pelican 911 forum for example, lots of name-calling there~~! Some say synthetics are the way to go (prolly not available when car was new?), or others say VR1 20-50 or Brad Penn 20-50, or other dino-based oil. Here is an example of said discussion:

http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/751482-ok-1st-oil-change-nice-please-lol.html
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'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

[Paul]

If you do not know what type of oil was being used, use dino. I use 10W-40 Pennzoil.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

[pmcaya2]

There was some consensus for heavier 20-50W oil in a thread I posted - better oil pressure in an older engine.

Re: capacity - (old school) replace the filter and add around 4 1/2 quarts. Run the car around, check for leaks, then top off if necessary. Some engines can use 1qt over 1000 miles without smoking or leaking, so check it periodically.

Caution: This car can piss oil further and faster than any car ever made. Place the drain pan far behind to drain plug, then move it another 3 inches!

[Rasta Monsta]

20w50 is ABSOLUTELY NOT the recommended weight. Porsche changed this a few years ago to 0w40 synthetic.

Not willing to go to 0 myself, so I run LiquiMoly 5w40.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[pmcaya2]

If Porsche recommended 0-40W it must have been for current cars (although zero viscosity is impossible).

5W-30W is recommended for my modern Toyota and similar cars because the clearances in modern cars are tighter than older vehicles.

A mechanic put 5W-30 in my '82 924 and I found that oil pressure was slightly less than 2 bar (30psi) on idle on a hot day - and the oil light would come on. Had an extensive thread on this issue and consensus was 20-50W for summer driving. I use paraffin based Pennsylvania oil and the car has 185 K miles.

PS I don't want to start an "oil wars" thread, so I'll sign-off with this post.

[Rasta Monsta]

[Mars478]

I run 0W-40 in my 1999 ML320, Mobil 1 Euro formula. For the 944 engine, I have found 20W-50 be the recommended grade, but it was from research from posts a long time ago. It would be great if 0W-40 was the recommended grade because I can get that super cheap from Wal-Mart. Maybe if you could post the TSB that would help?
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924, 82, 5 speed, dark red, 500 dollar special.

Daily: 99 ML320, 210k and still trucking.

[Rasta Monsta]

Porsche TSB, 4 Sept 2009. Image from Alldata:


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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[Mars478]

[tyfighter123]

http://www.porsche.com/usa/accessoriesandservices/classic/genuineparts/producthighlightsandneweditions/oil/

Not sure if this applies to the 924 but Porsche recommends 20w50 for all air-cooled up to the 2.7 engine which is up to 78'.
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Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)

[pmcaya2]

20W-50 is the correct answer.

From tyfighter123's link " the low viscosity of a 0W-30 oil means optimum cold-start behaviour, low engine resistance and other benefits in modern engines. In a 356, however, an oil of this kind can result in leaks and increased oil consumption due to the engine's higher production tolerances and lower oil pressure during operation."

An 80's engine was built to lower tolerances and requires a higher viscosity oil for thing's like oil pressure (see my previous posts). And high mileage engines more so .....

Now the 924 engines are extremely durable and you can probably get away with piss-thin oils, but as Clint would say, "Do you feel lucky?"

[FFNPMcD]

Thanks for all answers, sadly I jumped the gun before the post got good and used the Mobil 1 Euro formula (0W-40).
Little worried now so I'll be sure to keep an eye on consumption and gauge.
I use to car to get me to the firehouse in the mornings so I'm only driving about 700 miles a month. (plus a few fun miles).
I don't see this vehicle on a track any time soon.

Thanks for all the responses guys. Didn't want to start oil war, I honestly had no idea without the manual.
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1987 924s