991.2 Carrera S(ish) vs GT4RS Clubsport, Willow Springs
07-03-2024, 11:18 AM
#46
Rennlist Member
I added the 3rd in 2021( upgraded? all 3 to CSF). I have seen no difference in oil temp, and of course our stock water temp is always 194. With the 93 tune and 80F, I hit 270 oil temp at the end of a session. 90F, I have hit 284. I'm flushing with 6 gal of Redline coolant next week, hoping that makes a small difference. I do run Motul 300v oil, and oil samples have been good (better than Mobil 5w50). Guess it can handle the heat!
I have the AMS intercoolers. They are good for a couple laps, then are heat soaked. You can do a cool down lap (try to stay out of boost), and get another good lap. But you really need the IC sprayers. I would wait and get them both at the same time. Pretty sure there is not a separate tune for upgraded IC's.
I have the AMS intercoolers. They are good for a couple laps, then are heat soaked. You can do a cool down lap (try to stay out of boost), and get another good lap. But you really need the IC sprayers. I would wait and get them both at the same time. Pretty sure there is not a separate tune for upgraded IC's.
07-03-2024, 01:19 PM
#47
Rennlist Member
Thread Starter
300v 5w40 come back in the 12's, Mobil 5w50 in the 14's, and 300v 5w50 came back at 16.9.
07-03-2024, 01:28 PM
#48
Rennlist Member
I haven't done a UOA on the 991.2 yet, but my last M1 5W50 UOA on my 991.1 was 12.02 @ 100, prior 13.8 @ 100 M1 5W50, 10.9 Motul 8100 5W40 (which is what made me switch to M1 50)
That being said I KNOW this 300V is good oil.
I found this guy did a test of NEW 5W40 300V, sure enough, high 12's.
Last edited by AdamSanta85; 07-03-2024 at 01:36 PM.
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fsmich (07-03-2024)
07-03-2024, 01:57 PM
#49
Rennlist Member
Thread Starter
The Blackstone viscosity ranges are for the oil weight - They say 5w50 should come in at 12.9-17.3. 300v 5w50@16.9 is thick stuff.
Blackstone says 5w40 should be 11.9-15.3
All my UOA's from 300v have moly in the 600's, one of the big differences compared to Mobil1.
If you're tracking regularly, I'd recommend 300v 5w40. I get the 4pack(8L/8.4qts) from Amazon for $128.
Blackstone says 5w40 should be 11.9-15.3
All my UOA's from 300v have moly in the 600's, one of the big differences compared to Mobil1.
If you're tracking regularly, I'd recommend 300v 5w40. I get the 4pack(8L/8.4qts) from Amazon for $128.
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AdamSanta85 (07-03-2024)
07-03-2024, 02:04 PM
#50
Rennlist Member
The Blackstone viscosity ranges are for the oil weight - They say 5w50 should come in at 12.9-17.3. 300v 5w50@16.9 is thick stuff.
Blackstone says 5w40 should be 11.9-15.3
All my UOA's from 300v have moly in the 600's, one of the big differences compared to Mobil1.
If you're tracking regularly, I'd recommend 300v 5w40. I get the 4pack(8L/8.4qts) from Amazon for $128.
Blackstone says 5w40 should be 11.9-15.3
All my UOA's from 300v have moly in the 600's, one of the big differences compared to Mobil1.
If you're tracking regularly, I'd recommend 300v 5w40. I get the 4pack(8L/8.4qts) from Amazon for $128.
I will get a lifetime replacement from FCP Euro, and buy it once except for shipping ($15 from my house). Going to change oil every 6 months, and filter annually
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fsmich (07-03-2024)