Why not to add MoS2 Moly to your oil?
07-14-2022, 09:17 AM
#16
When I got my Boxster back in 2002, I followed the manual which recommended an oil change every 15K miles or every 2 yrs until Porsche changed that to 10K miles and then I followed that. LOL. I still had the car for 17 yrs and never had any engine problems and a friend owns it now and it’s still running great. Only used Mobil 1 0W-40 and no additives. I’d think your two blown engines would have blown even if you added Ceratec or MoS2 but that’s just me. I mean, why add anything solid (even if a lubricant) to an engine that is supposed to have liquid in it? Maybe, they might have blown earlier. 😆
The beginning of the end was not long after the Exxon merger....and, of course, the famous M1 v Castrol lawsuit regarding the use of non-synthetic group 1-3 base stocks (not group 4 PAOs and 5 esters) and still being able to market it as "full synthetic". It's not the same but it was ruled that it was ok to market it that way.
IMHO for several reasons it's not really apples-to-apples to compare a oil today to what it was ~20 years ago. Environmental regulations alone have changed the composition of oils significantly over this period of time.
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lkraav (08-10-2022)
07-14-2022, 09:26 AM
#17
Rennlist Member
Thread Starter
FYI if you don't already know the history, M1 0w-40 used to be a great oil. I also ran it many years ago back when it was a good oil.
The beginning of the end was not long after the Exxon merger....and, of course, the famous M1 v Castrol lawsuit regarding the use of non-synthetic group 1-3 base stocks (not group 4 PAOs and 5 esters) and still being able to market it as "full synthetic". It's not the same but it was ruled that it was ok to market it that way.
IMHO for several reasons it's not really apples-to-apples to compare a oil today to what it was ~20 years ago. Environmental regulations alone have changed the composition of oils significantly over this period of time.
The beginning of the end was not long after the Exxon merger....and, of course, the famous M1 v Castrol lawsuit regarding the use of non-synthetic group 1-3 base stocks (not group 4 PAOs and 5 esters) and still being able to market it as "full synthetic". It's not the same but it was ruled that it was ok to market it that way.
IMHO for several reasons it's not really apples-to-apples to compare a oil today to what it was ~20 years ago. Environmental regulations alone have changed the composition of oils significantly over this period of time.
07-14-2022, 04:43 PM
#18
Rennlist Member
I see mentions of DT40, is DI40 the best bet for the 997.2 DFI cars?
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ATX_Native (07-14-2022)
07-14-2022, 05:16 PM
#20
RL Community Team
Rennlist Member
Rennlist Member
Yes, as silver_tt says, but I actually use DT40 in my DFI Cayenne Turbo S so I don't have to stock another type of Driven oil and the UOA reports are stellar, so I think you can really use either one.
09-10-2023, 09:46 AM
#22
It has been shown that adding MoDTC to oil can cause coking/deposits in turbochargers (very high temps and pressures) as they act as a decomposition catalyst. However if the oil chemistry is right you don't need to worry about this. I have been running DI40 for over 50K miles in a turbocharged engine -- it was designed for it. Even running XP9 which has a ton of moly, zero issues.
09-10-2023, 10:08 AM
#23
RL Community Team
Rennlist Member
Rennlist Member
09-11-2023, 12:22 AM
#24
Instructor
First time user of ceratec in my last oil change. Under load at mid-high rpms the engine sounds and feels noticeably smoother. 17+yrs in the auto industry and like to think I have somewhat of a trained ear, HA!
Like Bruce I plan to alternate ceratec and Mos2 on my C2S 997.1.
Like Bruce I plan to alternate ceratec and Mos2 on my C2S 997.1.
Last edited by FlatsixS; 09-11-2023 at 12:23 AM.