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Oil use GT4RS

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Old 05-28-2023 | 10:12 PM
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Originally Posted by Hex
How much oil did your GT4RS use during the first 1000 KM’s?
my minimum oil level just appeared at 936 miles. Was not expecting that…
Old 05-29-2023 | 11:40 AM
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just for a reference point…I have the same motor on a different car (992 gt3). I’ve owned it from new and followed strict break in protocol. I use it regular street daily driving and canyon carving, no track.

I have 4200 miles and have used 3 qts of oil. First at 900 mi, second at 2550 mi, and 3rd 4200 mi. It has been evaluated/documented at dealership with no concerns
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Old 05-30-2023 | 05:27 AM
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Took delivery of a GT silver car last week. First check at 57kms and only a third full! Bit annoyed as I would have anticipated the dealer to check and top up so that I, as new owner, was not going to have to worry about in the first month. I Australia can only get the Mobil 1 C40 oil in 5 litres. Have ordered 6 x 1 'quart' bottles from the the US. Luckily arriving tomorrow.
Old 05-30-2023 | 06:58 AM
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1550 miles, zero use, mostly street, 3 track days, indicator still in top 1/3rd of measurement.
On another note, fellow 4RS owner under 1500 miles, had to load up and leave Mid O yesterday with a low oil pressure issue.
Old 05-30-2023 | 12:47 PM
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Oil message (add 0.8) came on for me at 2500 miles over the weekend. What oil are you guys topping up with? Going to order a few quarts, but on a business trip and don't have my manual.
Old 05-30-2023 | 01:08 PM
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Originally Posted by Taffy66
Spoke to a friend on the trackday last Saturday and he had a low oil warning at only 250 miles and he had to top it up. He reckons that his GT4 RS had left the factory with a low oil level !
I'm surprised anyone would take delivery of a new car and not check the oil level. Takes all the guesswork out of it.
Old 05-30-2023 | 09:47 PM
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Oil must be a Porsche C40 vs an A40 0w-40. By my reading there is only one oil on the market that qualifies. Mobil 1 ESP X3 0w-40. My GTS 4.0 could use a 5w-40 C40 oil, and there are many oil manufacturers that comply. The reason for the C40 classification is an extremely high flash temperature and non additives that will destroy the Petrol Particulate filters that the newer Porsche natural aspirated engines have. Using the wrong oil (ie a A40 oil) voids the warranty as potentially destroys the filters.
If caught 'short' you can top up with a C40 5w-40 oil like Liquid Moly Top tec 4110 5w-40. (there are some 15 C40 5w-40 oils on the market in Europe but currently only one 0w-40 C40 oil. Mobil 1 as above.
Old 05-30-2023 | 09:50 PM
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Originally Posted by johnrichard
Oil must be a Porsche C40 vs an A40 0w-40. By my reading there is only one oil on the market that qualifies. Mobil 1 ESP X3 0w-40.
Apparently, there is an Audi branded oil that qualifies as well (probably relabeled Mobil 1).
Old 05-30-2023 | 09:53 PM
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Originally Posted by GrantG
Apparently, there is an Audi branded oil that qualifies as well (probably relabeled Mobil 1).
Lets not forget VW.
Old 05-30-2023 | 09:54 PM
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VW 511 00 standard is the same as Porsche C40. The 'VW' oil is manufactured by Mobil, I therefore assume the 'Audi' version is the same? Mobil, with Porsche, developed the oil to work with the new high temperature petrol particulate filters.
Old 06-05-2023 | 01:17 PM
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Originally Posted by johnrichard
Oil must be a Porsche C40 vs an A40 0w-40. By my reading there is only one oil on the market that qualifies. Mobil 1 ESP X3 0w-40. My GTS 4.0 could use a 5w-40 C40 oil, and there are many oil manufacturers that comply. The reason for the C40 classification is an extremely high flash temperature and non additives that will destroy the Petrol Particulate filters that the newer Porsche natural aspirated engines have. Using the wrong oil (ie a A40 oil) voids the warranty as potentially destroys the filters.
If caught 'short' you can top up with a C40 5w-40 oil like Liquid Moly Top tec 4110 5w-40. (there are some 15 C40 5w-40 oils on the market in Europe but currently only one 0w-40 C40 oil. Mobil 1 as above.
My low level oil notification cane on at 992 miles. I topped up with 0.8 Qt. of Mobil 1 European Car Formula 5W-40 which indicated on the rear labeling it was Porsche C40. As an aside the run-in warning upon start-up did not show on start-up at 949 miles.
Old 06-05-2023 | 01:37 PM
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Originally Posted by stressless
My low level oil notification cane on at 992 miles. I topped up with 0.8 Qt. of Mobil 1 European Car Formula 5W-40 which indicated on the rear labeling it was Porsche C40. As an aside the run-in warning upon start-up did not show on start-up at 949 miles.
Fine for topping up (better than running low), but the car requires Both 0W40 and C40…
Old 06-05-2023 | 01:37 PM
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I'm curious for those of us that had to add oil did anyone check it from day one and see how full it came from the dealership? I know I didn't. So although I had to add .8 qt I'm wondering what the oil level was when I got the car.
Old 06-05-2023 | 01:40 PM
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Originally Posted by GrantG
Fine for topping up (better than running low), but the car requires Both 0W40 and C40…
OM says otherwise. It ties it to temperature the car is running in or am I missing something?
Old 06-05-2023 | 01:54 PM
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Originally Posted by sbsurfer
I'm curious for those of us that had to add oil did anyone check it from day one and see how full it came from the dealership? I know I didn't. So although I had to add .8 qt I'm wondering what the oil level was when I got the car.
Like you, in my excitement I neglected to check until ~350 km, at which point level was showing at 1/2. SA told me GT3 engines are only filled to 3/4 at factory. I did check my GTS 4.0 soon after delivery. That one showed 1/1.


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