Which Oil Do You Use?
03-29-2008, 06:37 PM
#36
Rennlist Member
bjiere
R U happy with Red Line? I'm putting RL 75/90 in my gearbox and thinking of 15/50 oil for the 964. Does anyone know if the RL has the good Zn/Ph levels??
R U happy with Red Line? I'm putting RL 75/90 in my gearbox and thinking of 15/50 oil for the 964. Does anyone know if the RL has the good Zn/Ph levels??
03-29-2008, 07:38 PM
#37
Three Wheelin'
pat056:
I've always liked Redline products, so I emailed them before I switched in the P-car. This is what they said:
Barry,
Thank you for contacting Red Line Oil, in your oil/air cooled 911 I
would recommend the 10W40. I just today received the latest chemical composition for the motor oil from our chemist. The phosphorus is 1100ppm and the zinc is 1230ppm. Still sufficient levels for good flat tappet cam shaft protection.
Regards, Dave
Red Line Oil
I told him I'm in Seattle, without Antarctic cold or blazing heat, so the 10W/40 made sense to me. If you track in SC, 15W/50 sounds better.
I understand there are some hard-core Porsche guys at Redline. I trust 'em.
I've always liked Redline products, so I emailed them before I switched in the P-car. This is what they said:
Barry,
Thank you for contacting Red Line Oil, in your oil/air cooled 911 I
would recommend the 10W40. I just today received the latest chemical composition for the motor oil from our chemist. The phosphorus is 1100ppm and the zinc is 1230ppm. Still sufficient levels for good flat tappet cam shaft protection.
Regards, Dave
Red Line Oil
I told him I'm in Seattle, without Antarctic cold or blazing heat, so the 10W/40 made sense to me. If you track in SC, 15W/50 sounds better.
I understand there are some hard-core Porsche guys at Redline. I trust 'em.
03-30-2008, 10:00 AM
#39
Rennlist Member
I have talked with Dave at Redline many times...Their oil is most likely overkill for anyone who is not racing....The 10w40 has a higher film strength than most 20w50's....I have acheived the lowest wear of any of the oils I've tested using RL. It's got plenty of all the additives that everyone is buzzing about lately....
03-30-2008, 08:56 PM
#41
Rennlist Member
TR6,
I've posted a few on www.bobistheoilguy.com. There are many other Porsche UOA's posted as well. I will have some new ones now that racing season has started. I am running RL in the cup car, Elf 10w50 in the 944, and Brad Penn in my brother-in-laws 944 cup. Should be an interesting study.
I've posted a few on www.bobistheoilguy.com. There are many other Porsche UOA's posted as well. I will have some new ones now that racing season has started. I am running RL in the cup car, Elf 10w50 in the 944, and Brad Penn in my brother-in-laws 944 cup. Should be an interesting study.
03-31-2008, 10:06 AM
#43
Rennlist Member
Honestly, any of the oils that meet the the specs Porsche has mandated in their recommended/approved list will serve your car very well indeed...Pick an oil that is easily obtainable and priced to fit the budget and use it with confidence. I think these oil threads get way too complicated. Just MHO.
03-31-2008, 11:16 AM
#44
Drifting
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One thing that has given me a lot of visibility to how well my oil is holding up and how well the engine is wearing is sending in samples to Blackstone Labs for oil analysis. On my BMW M Coupe, it helped identify that the oil I was using (Mobil 1) was breaking down fairly quickly under high oil temps at the track. I still run Mobil 1 in that car, but I now change the oil much more frequently, especially if it sees any track days. For about $20 per oil sample analysis, its money well spent to understand how the bearings and other engine metals are wearing in your engine. No financial interest, just extra cautious about oil and engine wear after seeing my 911 engine spin a rod bearing last year.
03-31-2008, 02:13 PM
#45
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One thing that has given me a lot of visibility to how well my oil is holding up and how well the engine is wearing is sending in samples to Blackstone Labs for oil analysis. On my BMW M Coupe, it helped identify that the oil I was using (Mobil 1) was breaking down fairly quickly under high oil temps at the track. I still run Mobil 1 in that car, but I now change the oil much more frequently, especially if it sees any track days. For about $20 per oil sample analysis, its money well spent to understand how the bearings and other engine metals are wearing in your engine. No financial interest, just extra cautious about oil and engine wear after seeing my 911 engine spin a rod bearing last year.