Best oil for 981 Cayman S
03-04-2020, 10:21 AM
#16
Just a FYI, if you go LiquiMoly you can order from FCP Euro and get free replacement oil on future changes (just have to send back your old oil). I snagged some Mobil 1 0W-40 on sale at Walmart recently, but plan to go LM at my next change.
03-08-2020, 12:20 PM
#18
Been driving on it for a ~700 miles and can tell an obvious diff.. on cold starts and especially on upshifts.. engine is running smoother and quieter.
Bought some for the Viper too.
03-08-2020, 12:52 PM
#19
Addict
Rennlist Member
Rennlist Member
I switched from Driven DT to DI just this past week. Oil reports for the DT were excellent and the car definitely is quieter from cold start. I also noted that it held its viscosity better than Motul XS which is what I was using before Driven.
03-08-2020, 01:35 PM
#20
BTW, here is a great resource (use google translate)
https://www.oil-club.ru/forum/forum/33-laboratornye-analizy-svezhie/&usg=ALkJrhilyFa4jIdm7vYXtL6igCLFqcNmKg
They have hundreds of oils analyzed, including the often missing NOACK parameter you don't get from places like Backstone. I have not seen DRIVEN products in there, but most of the popular oils here are represented and do pretty well. Standouts include Red Line (A40 approved) and Amsoil Signature (not A40 but that might not be a show stopper) for their Group IV/V blend base oil, good NOACK, Moly, Zinc and Phosphate levels.
I am switching to Red Line 0w40 based on the fantastic virgin oil analysis results it produces. It is a true 40 weight to boot.
https://www.oil-club.ru/forum/forum/33-laboratornye-analizy-svezhie/&usg=ALkJrhilyFa4jIdm7vYXtL6igCLFqcNmKg
They have hundreds of oils analyzed, including the often missing NOACK parameter you don't get from places like Backstone. I have not seen DRIVEN products in there, but most of the popular oils here are represented and do pretty well. Standouts include Red Line (A40 approved) and Amsoil Signature (not A40 but that might not be a show stopper) for their Group IV/V blend base oil, good NOACK, Moly, Zinc and Phosphate levels.
I am switching to Red Line 0w40 based on the fantastic virgin oil analysis results it produces. It is a true 40 weight to boot.
03-08-2020, 08:20 PM
#21
Burning Brakes
Thread Starter
BTW, here is a great resource (use google translate)
https://www.oil-club.ru/forum/forum/33-laboratornye-analizy-svezhie/&usg=ALkJrhilyFa4jIdm7vYXtL6igCLFqcNmKg
They have hundreds of oils analyzed, including the often missing NOACK parameter you don't get from places like Backstone. I have not seen DRIVEN products in there, but most of the popular oils here are represented and do pretty well. Standouts include Red Line (A40 approved) and Amsoil Signature (not A40 but that might not be a show stopper) for their Group IV/V blend base oil, good NOACK, Moly, Zinc and Phosphate levels.
I am switching to Red Line 0w40 based on the fantastic virgin oil analysis results it produces. It is a true 40 weight to boot.
https://www.oil-club.ru/forum/forum/33-laboratornye-analizy-svezhie/&usg=ALkJrhilyFa4jIdm7vYXtL6igCLFqcNmKg
They have hundreds of oils analyzed, including the often missing NOACK parameter you don't get from places like Backstone. I have not seen DRIVEN products in there, but most of the popular oils here are represented and do pretty well. Standouts include Red Line (A40 approved) and Amsoil Signature (not A40 but that might not be a show stopper) for their Group IV/V blend base oil, good NOACK, Moly, Zinc and Phosphate levels.
I am switching to Red Line 0w40 based on the fantastic virgin oil analysis results it produces. It is a true 40 weight to boot.
03-09-2020, 03:31 AM
#22
Glad the MolyGen is working out for you.Molybdenum Sulfide looks like a powerful addition to these new oil blends. Have you done any analysis on it? What year Viper?
03-09-2020, 12:08 PM
#23
But the 5L MolyGen jug has a nice built-in pour spout that works great.. no mess pouring out all those people.
No. Haven't done any analysis on the old Mobile-1 0W-40 oil.. but certainly gave the old filters a close look with a magnifying glass n' they've been nice and clean.
2008 Viper 8.4L SRT-10 (currently ~675hp)
Interestingly, she shares the same factory fill recommendation of "Mobile-1 0W-40".
In fact a lot of the fluids used are the same weights as the Cayman. AND the cars weigh about the same.. just around 3000lbs.
I stuck with the factory fill for a long while before moving up to Mobile-1 5W-50, Mobile-1 15W-50 (for a track day IIRC) and have been running RedLine 10W-40 in her ever since.
I think she's gonna love the MolyGen n' I'm gonna like consolidating down to a single oil between the two cars.
I think MolyGen 5W-40 will provide even better Cold Start protection than the RedLine and continue to quiet the bits of noise from the valve train.
03-09-2020, 07:30 PM
#25
Rennlist Member
My guess is that oils have become what OEM tires used to be: Whichever company pays the manufacturer the most. i.e. discounts on materials. That is not to say that Porsche would recommend Crapola 0W40, but ----
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03-10-2020, 11:51 AM
#26
And in that regard, they have to go with the lowest weight common denominator. Otherwise, 10W-40 would have been the manufacturer recommendation for the Viper.
I think this explains why the same oil weights are recommended for both the 2.7L six cylinder Cayman engine and the 8.4L 10 cylinder Viper engine.
Another common data point for both cars is to use 15W-50 for track days.
The same oil for two very different engines.
Seems odd.My main take away from this info. is, don't sweat using different oil weights.
Especially when some of these newer high tech blends didn't exist when the manufacturer made their recommendations AND like VRacer suggests, would be too costly to their bottom line anyway.
03-10-2020, 08:03 PM
#27
Rennlist Member
Originally Posted by okie981
I recently switched from Driven DT-40 (5w-40) to Driven DI-40 (0w-40). Several other brands with excellent additive packages are on the market.
I forgot to mention Liqui-Moly in my earlier post, they have excellent oil with correct balance of additives for direct injected engines.
As far as Mobil 1, they may have revised their additive package to reduce calcium and sodium and add more moly, don't know. Oil manufacturers change their additive packages sometimes and tell no one, and aren't required to. The Euro spec Mobil 1 blend has been around a long time. What it was 6-7 years ago is not what I would call optimum based on what has been learned about Low Speed Pre-Ignition (LPSI) since then, and about direct injection engines in general. Not that it was bad then, just not optimum. It may be perfect now, don't know. I like Driven because I can talk directly to the people who engineer the oil.
For street driving, I wouldn't vary much from the OEM recommended 0w-40 weights. If you start tracking your car, there can be other viscosity options you may want to look into.
I forgot to mention Liqui-Moly in my earlier post, they have excellent oil with correct balance of additives for direct injected engines.
As far as Mobil 1, they may have revised their additive package to reduce calcium and sodium and add more moly, don't know. Oil manufacturers change their additive packages sometimes and tell no one, and aren't required to. The Euro spec Mobil 1 blend has been around a long time. What it was 6-7 years ago is not what I would call optimum based on what has been learned about Low Speed Pre-Ignition (LPSI) since then, and about direct injection engines in general. Not that it was bad then, just not optimum. It may be perfect now, don't know. I like Driven because I can talk directly to the people who engineer the oil.
For street driving, I wouldn't vary much from the OEM recommended 0w-40 weights. If you start tracking your car, there can be other viscosity options you may want to look into.
Originally Posted by FlyinAg
Yeah but it all gets convoluted when Porsche recommends M1 0w-40 which is now a totally different formulation than what it was before they changed the be to 'FS'. Also, when you look at the actual viscosity specs (not the winter and summer #s on the package) some 0w-40 oils are extremely close to 30 weight oils when hot. What did Porsche really intend? Who even knows, because they don't make the actual approval specs readily available.
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CaymanCarver (03-11-2020)
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08-19-2020, 05:49 PM
#30
https://www.rymax-lubricants.com/blo...20performance.