997.2 3.8 Engine Failure
#856
#857
Thank you for your response but I thought I saw Jake or someone say through these VOLUMINOUS posts that he recommends a more “robust” and/or well rounded oil such as the DT-40 due to the 9A1’s being direct injected?
#858
Actually, it would be Driven DI40 for the 9A1 platform and DT40 for the M96/M97 port injection.
#859
Burning Brakes
Anything that provides a better lubricating layer between the piston and cylinder is felt to be beneficial. DFI may contribute to breaking down that protection. But, there is no definitive cause of cold seizure that I have read.
#860
Nordschleife Master
#861
Balr14 did you miss all the posts explaining that measuring the actual bores of seized engines revealed that they had closed ion at the bottom of the cylinder so there was almost no cold clearance?
Baz
Baz
#862
The new engine used in the base Boxster and base Cayman for 2009 had port injection. I remember when the new engine arrived, Porsche stated that they met their design goals for those models without needing to go to DI.
#863
Rennlist Member
#864
Burning Brakes
Perhaps my wording is incorrect, but that is exactly what I was trying to convey, which has no connection to DFI that I have seen. The discussion seems to have turned to whether or not different oil or oil additives are any benefit. I do not see how that would help, but I don't think it will hurt.
#865
#866
#867
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I need clarification here. 9A1 - DI, Correct?
I'm not so sure about a NON DI 9A1 engine.
I'm not so sure about a NON DI 9A1 engine.
#869
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#870
Rennlist Member
I've learned a lot in this thread - thanks to all - especially, Jake, Charles, Baz and Pete.
First.. Anyone want to buy an unopened case of DT40 ? LOL
Secondly - Pete do you go to the trouble to pull your oil sample before the Techron? Going with the assumption that if it affects the oil it affects oil analysis.
Lastly - is it overkill to change to DI40 and also use Cera Tec ? (This is for a Turbo S)
First.. Anyone want to buy an unopened case of DT40 ? LOL
Secondly - Pete do you go to the trouble to pull your oil sample before the Techron? Going with the assumption that if it affects the oil it affects oil analysis.
Lastly - is it overkill to change to DI40 and also use Cera Tec ? (This is for a Turbo S)