924Board.org

timstar92404 · Joined: 22 Sep 2004 Posts: 2075 Location: richmond BC

I'm wondering what engine oil is best to use.

it doesn't get cold here in the winter usually above freezing and in the summer it doesn't usually get over 30 degrees.

I heard 20w50 is what you should use. the previous owner said he put in 10w30.

also what brand oil is best ? or it doesn't matter.

also is it better to use synthetic or half sythetic ?

and another question.

lwhat do I need to change my spark plugs. just a spark plug socket.

I don't get how you gap the the spark plugs... aren't they allready gapped when you buy them?
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78 924 sold.
85.5 944

Lizard · Posted: Wed Apr 20, 2005 4:13 pm Post subject:

as for oil, if you change al the gaskets sans head gasket, then run synthetic, if you dont then it will leak, run 10w30 regular dyno oil. brand doesnt matter, but castrol is good.

as for spark plugs, you can get a gapper at lordco for less than $2
get basic copper plugs for your car

the stand you get the gapper out of will have a little pic that shows you how to use it.
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3 928s,

timstar92404 · Joined: 22 Sep 2004 Posts: 2075 Location: richmond BC

I thought the titanium spark plugs were better and last longer?
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78 924 sold.
85.5 944

Lizard · Posted: Wed Apr 20, 2005 4:24 pm Post subject:

last longer possibly cost more Yep,
better spark, copper is the best from what I have seen, but I have some used NGK iridium 924 plugs if you want them, they dont have many miles on them but will need to be cleaned as they got abit dirty when the headgasket blew.
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3 928s,

tj924 · Posted: Wed Apr 20, 2005 4:43 pm Post subject: Re: what engine oil to use?

Lizard · Posted: Wed Apr 20, 2005 4:45 pm Post subject:

some are, but it is better to check them EVERY time
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3 928s,

MunkPuppy · Posted: Wed Apr 20, 2005 4:49 pm Post subject:

Premium plugs like Bosch Platinum are pre-gapped, but I wouldn't recommend them for any carbueretted or CIS-injected engines, only EFI ones. Main reason being that they have much smaller exposed electrode tips, and when they get fouled, the plugs can misfire (or NOT fire) more often.

I would go with a mid-range plug like NGK or Bosch. I'll agree with Lizard on standard copper plugs.

As for engine oil, Porsche says to use 10W30. Depending on the mileage your engine has on it, you may want to go with something thicker so that it is not as easily pushed past seals and such.

I personally use either Castrol Syntec or Mobil-1 10W40 or thicker.
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'80 931 FOR SALE

"It's a shame that stupidity isn't painful"
-Anton Szandor LaVey

timstar92404 · Joined: 22 Sep 2004 Posts: 2075 Location: richmond BC

so synthetic won't always leak in the 924 engine.?

my engine doesn't seem to be leaking any oil right now.
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78 924 sold.
85.5 944

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

I put Castrol synthetic in my NA *before* the top-end rebuild, and have had no issues. I still have the synthetic 10W40 from this winter, but am thinking about swithing to 20W50 at my next oil change (before summer).
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erstwhile owner of just about every 924 variant ever made

WhoDak · Joined: 22 Mar 2005 Posts: 492 Location: Akron, OH

What if the engine was rebuilt about 5,000 miles ago, what weight would you guys recommend?
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Mike
'82 924 N/A
'91 Toyota Pickup SR5 4x4 Xtra cab

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

I can't see a rebuild making a difference. Direct from the owner's manual:

WhoDak · Joined: 22 Mar 2005 Posts: 492 Location: Akron, OH

Ah ok, synthetic it is. It won't be driven much in the winter at all, I plan to keep it garaged except for when the roads are clear and dry. I'm hoping to be able to keep the salt off of it so it doesn't start to rust at all. Last winter I drove 60, mostly highway miles round trip to work 4 days a week in my truck, in a week after washing it, it was like i never washed it. Sometimes only a day if it was bad.
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Mike
'82 924 N/A
'91 Toyota Pickup SR5 4x4 Xtra cab

numbbers · Posted: Thu Apr 21, 2005 10:12 am Post subject:

The only oil Porsche recommends for all of it's vehicles is 15-50 Mobil-1. That is because it is simply the best.
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1980 924 Turbo

Roger · Joined: 06 Jan 2003 Posts: 1235 Location: Cordova, TN

In an N/A engine I would run regular Castrol. Synthetic is more expensive and just not necessary. I would recomend sythetic in a turbo because of the higher temps. The best thing you can do is make sure to change your oil every 3000 miles. If synthetic makes you feel beter and you dont mind the extra expense go ahead. IMHO it wont make a difference though.
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1981 924 NA

Some people are like Slinkies. Not really good for anything, but you
still can't help but smile when you see one tumble down the stairs.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI