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Grinding into 2nd gear... Considering using Lucas additive

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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHGrinding into 2nd gear... Considering using Lucas additive

Leading reported evidence

Adjust gear engagement, if any

Suggestion or failed attempt

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Suggestion · Original poster

Also, what does the left cable do to adjust the gear engagement, if any.

Grinding into 2nd gear... Considering using Lucas additive
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Leading evidence: 'Adjust gear engagement, if any' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'heavy and thick viscosity of cold trans lube' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Adjust gear engagement, if any' (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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Adjust properly

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
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Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

the shifter wont hurt your transmission.........are you sure its adjusted properly?

Grinding into 2nd gear... Considering using Lucas additive

Adjust right cable further towards the shifter

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Question: Since the problem is with second gear, should I adjust the right cable further towards the shifter?

Grinding into 2nd gear... Considering using Lucas additive

heavy and thick viscosity of cold trans lube

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that suspect a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause

Your problem is most likely the heavy and thick viscosity of cold trans lube.

Grinding into 2nd gear... Considering using Lucas additive

Fill tranny

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I decided to drain and re-fill the tranny with Mobilube 75W-90 SHC gear lube that I ordered from Lufteknic.

Grinding into 2nd gear... Considering using Lucas additive
Frequently discussed actions (7)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Adjust gear engagement, if any

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Also, what does the left cable do to adjust the gear engagement, if any.

Grinding into 2nd gear... Considering using Lucas additive

Adjust properly

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

the shifter wont hurt your transmission.........are you sure its adjusted properly?

Grinding into 2nd gear... Considering using Lucas additive

Adjust right cable further towards the shifter

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Question: Since the problem is with second gear, should I adjust the right cable further towards the shifter?

Grinding into 2nd gear... Considering using Lucas additive

Fill tranny

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I decided to drain and re-fill the tranny with Mobilube 75W-90 SHC gear lube that I ordered from Lufteknic.

Grinding into 2nd gear... Considering using Lucas additive

Replace with the wrong fluid

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Who knows if the previous owners did a tranny fluid change with the wrong fluid.

Grinding into 2nd gear... Considering using Lucas additive

Run thicker fluids

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
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Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you are concerned about cold protection, you could try something like swepco 201, although you will get a notchy 1-2 shift until things warmup, which is par for the course when running thicker fluids.

Grinding into 2nd gear... Considering using Lucas additive

Set adjustment

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

you should set the adjustment with the bridge tool

Grinding into 2nd gear... Considering using Lucas additive
Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

heavy and thick viscosity of cold trans lube

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause

Your problem is most likely the heavy and thick viscosity of cold trans lube.

Grinding into 2nd gear... Considering using Lucas additive
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

22 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

I put a SSK in my 996 C4 about four months ago and it worked great.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T065735Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I put a SSK in my 996 C4 about four months ago and it worked great. Recently, the car now is rough shifting into secong gear when the car is cold. I was wondering if the Lucas Heavy Duty Oil Additive was worth trying to keep the syncros lubed during start-up. Has anyone used this product before? I may go back to the stock shifter to keep from ruining my transmission.

POST 2Original post

the shifter wont hurt your transmission.........are you sure its adjusted properly?

POST 3Original post

Very common in the SSK installs. This might very well be a shifter cable adjustment.

POST 4 / ORIGINAL POSTEROriginal post

Question: Since the problem is with second gear, should I adjust the right cable further towards the shifter? That direction of adjustment seems like it would help me engage further into second gear with the lever action of the shifter. Also, what does the left cable do to adjust the gear engagement, if any. All it seems to do is position the shifter left or right to center its position. Should it be centered between the 3rd and 4th gear position? That's where it is now.

POST 5Original post

Mine is in the shop with this very problem. I was thinking synchro, but did not hear from them today. Mine started with the cold weather as well about a month ago. Will post outcome when i know.

POST 6 / ORIGINAL POSTEROriginal post

Thanks, please keep me posted.

POST 7Original post

you should set the adjustment with the bridge tool

POST 8Original post

Not sure which SSK you have, but the OEM "tool" does not work on the B&M SSK due to the larger shaft. See here for more details: http://www.renntech.org/forums/index.php?showtopic=7778

POST 9Original post

Your problem is most likely the heavy and thick viscosity of cold trans lube. Install a short shifter that requires more effort and this situation is made worse. You may try a lighter viscosity synthetic oil that has less drag when cold or try to match engine and trans revs carefully when shifting until the trans is warmed up. If it was an adjustment problem it would happen cold or warm.

POST 10 / ORIGINAL POSTEROriginal post

That's why I was thinking about using that Lucas stuff to keep the tranny lubed when it is still cold. If that doesn't work, I will probably do a fluid change. The car has 47,000 miles on it but who knows if it was ever changed and refilled with non-Porsche approved fluid since I bought it with 39,000 mi on it from a wholesaler.

POST 11Original post

I still have not heard anything from the dealer. But, Why would it ever be normal for a transmission to grind; cold or not? Something has to be not working properly. My car did not do this last winter when it was -5 degrees out. BTW i have 70K miles, new clutch at 60K.

POST 12Original post

How far from the floor is your pedal STARTING to engage the clutch?

POST 13Original post

I actually have the same problem as well when it is cold. It is weird because it doesn't happen when it is above about 50 degrees, but if it is colder, then it is very difficult to get the car into 2nd gear. I guess I never really throught about it, just thought it was a quirk of the car, if anyone finds out why, I would be interested.

POST 14Original post

99...I have been without for the last few days, but i think about 1/2- 2/3 of the way up. Why do you ask?

POST 15Original post

Will call dealer tomorrow for an update. I am thinking new tranny...it will be a week.

POST 16Original post

no new trannies anymore all 9x6 trannes are now rebuildable by your freindly neighbor hood porsche dealer

POST 17Original post

New tranny to be installed. I spoke with the dealer quickly, assume it is remanufactured from Germany. It took 6-7 days for them to get it. Will post complete details when i get the service info.

POST 18Original post

Bad Synchro(s). Also found Intermediate shaft seal bad as well.

POST 19Original post

A quick return to topic regarding the lucas additive. Yes, it will help with climbing cold gears, BUT it also foams like mad when exposed to the agitation of the inside of a gearbox. I would not put this in your transmission. If you are concerned about cold protection, you could try something like swepco 201, although you will get a notchy 1-2 shift until things warmup, which is par for the course when running thicker fluids.

POST 20 / ORIGINAL POSTEROriginal post

I decided to drain and re-fill the tranny with Mobilube 75W-90 SHC gear lube that I ordered from Lufteknic. I will see if that smooths things out. As mentioned before, the car has 46k on it but only 10k of those are mine. Who knows if the previous owners did a tranny fluid change with the wrong fluid.

POST 21Original post

There is a test for the not-uncommon 2nd gear transmission problem found in some newer 996s. During constant acceleration, shift 1-2 at 5000 RPM, shift 2-3 at 5000, then shift back to second when you reach 5000 in third. No need to engage the clutch, just shift from 3 to 2 at 5000. If it grinds, even occasionally, you have a problem.

POST 22 / ORIGINAL POSTEROriginal post

Thanks, I will try that. I have wondered if I didn't properly "break-in" the SSK that I installed. Recently, I have been shifting into second with a good strong 'pull' on the shifter and this has been working very well to eliminate any grinding. Doing this until the tranny warms up has worked for the past two weeks. I will try this over the next 1000 mi, much like the break-in period for the SSK to get past the initial notchy gear shifting.

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