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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRedline vs. Swepco
Leading reported evidence
Fill with 75w90 shell transaxle oil
Performed · outcome unconfirmed
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Performed · outcome unconfirmed · Original poster
The 996's are factory filled with 75w90 Shell Transaxle Oil.
Leading evidence: 'Fill with 75w90 shell transaxle oil' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill with 75w90 shell transaxle oil' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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And the early cars (I have heard) are not to be filled with synthetic, so I don't like that broad claim - albeit a works well
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I am not kidding you - I ran the 210 and the car changed from a hard to shift in the morning notchy till warmed up thing to a smooth smooth smooth all day long, every shift, morning noon and night and yes, its a cocktail - I will say, it has a proven track record by MANY people
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I am not kidding you - I ran the 210 and the car changed from a hard to shift in the morning notchy till warmed up thing to a smooth smooth smooth all day long, every shift, morning noon and night and yes, its a cocktail - I will say, it has a proven track record by MANY people
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Suggestion · Original poster
But then again they also recommended a 13/16" spark plug socket when 996's use 5/8".
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I am not kidding you - I ran the 210 and the car changed from a hard to shift in the morning notchy till warmed up thing to a smooth smooth smooth all day long, every shift, morning noon and night and yes, its a cocktail - I will say, it has a proven track record by MANY people
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Performed · outcome unconfirmed
I am not kidding you - I ran the 210 and the car changed from a hard to shift in the morning notchy till warmed up thing to a smooth smooth smooth all day long, every shift, morning noon and night and yes, its a cocktail - I will say, it has a proven track record by MANY people
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19 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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No better way to start the weekend off than an oil question!
I see that Swepco oil has earned its place in the hallowed halls of Porschedom. I suspect the reputation was earned during the air cooled era and has carried on through. So when it came time to change my transaxle oil, I followed rank and ordered a gallon of Swepco 201 80W-90 for my upcoming transaxle service.
But as they say, an idle mind is the devils workshop, and I am starting to have my doubts.
I have owned a long sucession of Alfa Romeo GTV 6's which use a similar type of transaxle which also use Porsche synchronizers. In those boxes, Alfa owners typically use Redline 75W90NS, which is a synthetic. The Alfa's cold shifting is amazingly improved with redline gear oil over the regular dino transaxle oil.
Redline is synthetic and Swepco is not. With a 90,000 mile recommended change interval, Porsche must spec a synthetic too, athough I can't find an oil spec.
Am I missing something here?
Hey, you're an air cooled guy now!! As I suspected!!
Swepco 210 is an 80W-140 oil. The 996's are factory filled with 75w90 Shell Transaxle Oil. I know its Friday and all, but it sounds like a cocktail, not a transaxle oil.
I am not kidding you - I ran the 210 and the car changed from a hard to shift in the morning notchy till warmed up thing to a smooth smooth smooth all day long, every shift, morning noon and night and yes, its a cocktail - I will say, it has a proven track record by MANY people
I know Dell uses DELVAC and swears by it at the track and in race cars... but the swepco was such an improvement instantly when I changed it - I actually called and talked to the service guys to see if I was dreaming or it was real....I ran it for about a year - it amazed me
If I was making a martini I could figure out a splash. What's a splash in a transaxle?
BTW Pelican Parts's is who recommends the 201. But then again they also recommended a 13/16" spark plug socket when 996's use 5/8". I'm waiting for my RMA on that one.
Sorry but that write up turned me OFF to it - reason - "works well in 901, 915, G50, G96
Come on, works well?
And the early cars (I have heard) are not to be filled with synthetic, so I don't like that broad claim - albeit a works well
So here is my conclusion to this old thread. I could not tell the difference between the factory fill and redline. My gearbox was balky when cold either way. But I just put a new clutch in over the weekend and wow! That made a difference. The trans shifts much easier now.
Swepco 210 is VERY thick... you will be losing horsepower if you use that fluid because of the internal drag... if you are doing endurance racing then its ok because the heat will make it thinner...
why does your shop not recommend 201 for the 996?
Swepco is an interesting choice.... curious why you would use a mix of this and ATF when there are good synthetic alternatives available...... Who is your wrench??
Cheers
I bought Swepco tranny fluid for my '99 996 last year and purchased what they recommended for my Porsche. Although it did not eliminate my cold weather shifting difficulty, it did make it a bit better.
This is a source reference. Confirm exact model applicability in the original material.
