dremelius

I'm sorry if this is located in an obvious location and I can't find it but I've been looking for a while. I have a 2015 911 (does that make it a 991.1?). Just a plan 911 not an S or GT3. I can't find a thread that discusses how to change the oil and filter for this particular car. Does that exist on this site? Thanks!

stealthboy

991 Oil Change


https://rennlist.com/forums/991-diy/...il-change.html

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Tools needed: 36mm socket, 8mm allen wrench
Parts needed: Oil filter, crushable aluminum ring, 8 quarts Mobile1 0W-40

Decided to change the oil and filter on my 991 C2S Cab this weekend. I have 1750 miles and this is my break-in oil change (old school). 8 quarts of Mobil 1 0W40 and one Porsche filter total cost with tax $85.00. First, you do not need to take off the bumper. Second, you do not need to take off the rear wing. It is an easy task that took me 35 minutes including driving the car up on 3” ramps for the rear and raising the front with 2 scissors jacks the same 3”. I have a Cab so the rear engine cover doesn’t flip up but it is the same cover that slides up and back when the top goes down. As a result the Cabs are a little more difficult to change oil because you have to duck under the raised cover. Picture 1 shows the plastic engine cover in place. First you pull out the plastic stiffener (Picture 2) from the air intake (this makes it easier to remove the plastic cover as the intake bellows is more flexible). Then you pop off the plastic engine cover. There are four fitting holding the top and four holding the bottom (Picture 3). These are plastic male fitting that pop into rubber grommets. I just pulled up on the cover at the top and started from right to left pulling them free one at a time. Then pull off the bottom four and the cover is free. Then move it out of the way. Then pull the two fans off (picture 4). There is one pop off fitting at the bottom (do that one first) and then it has two fittings at the top that pull out laterally. Finally, you pull off the air intake (picture 5) that has just two pop off fittings. Everything just pops off no tools needed.

Now the filter is visible (Picture 6) and there is enough room to unscrew it (36 mm socket) pull off the top and remove the filter. Before I did that, however, I removed the drain plug using an 8mm allen socket. Everything goes back together the reverse of removal. I know there have been some rants about Porsche’s design on the 991 concerning oil change but honestly it was quite easy and fast. Much faster and easier that my SLK 55. The only tools needed are a 36mm socket and an 8mm allen. I drained out a little less than 7.5 quarts. The owner’s manual says the capacity with filter is 1.98 US gallons. I read that as 8 quarts. I added back 7 quarts and I will check the level and add as necessary. The oil temp when I drained it was about 150 degrees.
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Dewinator

I did this two weekends ago to prep for track day. It also requires a torque wrench, the numbers I heard were 37 ft/lbs for the drain plug and 19 ft/lbs for the oil filter. Apparently you're also supposed to use "Kluber Syntheso Glep 1" on the new rubber ring that seals the oil filter housing instead of dipping it in fresh oil that people often due.


I started out putting about 7.6 quarts back in, and it read all the way in the yellow. Ended up taking slightly over 8 quarts.

TorqueChap

Great info everyone. Thank you.

stealthboy

Yes, I have written down 50 Nm (37 ft lb) for the drain plug and 25 Nm (19 ft lb) for the filter cover. Oil refill should be 7.5 liters (new engine fill is 10.1 liters). I did the whole thing in 30 minutes. Really wasn't difficult at all. I didn't even have to raise my car up off the ground.

Porsche_nuts

How did you manage that? Steep inclined driveway??

trucheli

You don't even need to raise the front. Just putting the rear on ramps is enough to drain the oil. The plug is in the rear.

arch7

Stupid question, but will your local gas station take the used oil? How do you dispose of it?

991carreradriver

Not too many gas stations in my neck of the woods that even have a service bay. Anyone that does oil changes should take your used oil. I think (not sure) that they get paid for it.

trucheli

I use Porsche grease Part # 000 043 204 68 for the o ring filter housing.

fastdiablo

Pelican parts has oil change kits for cheap and by each generation. Easy shopping there -no affiliation, but they are a sponsor.

CSK 911 C4S

Take to an autoparts store. Most take oil.

dremelius

Thanks for all the good information. When I test drove this car almost a year ago, the dealer was telling me how to change the oil and what he told me didn't agree with the information in ncamg's instructions which are from 2012. I thought that maybe something had changed in 3 years but turns out the salesman was giving me instructions for a different car.

One thing that the salesman said was that the engine capacity was 10 quarts. In the ncamp post, there is a reply from 911slow with a quote from the WS manual. In that information it states that:

Engine oil change quantity Engine MA 103/MA 104 Filling capacity with and whiout filter 7.5 l
Engine quantity for a new engine Engine MA 103/MA 104 Filling capacity 10.1 l

Does that mean that 2.6 liters of oil remain in the engine when you change the oil?

todd92

2.6 liters remain in the oil coolers and lines, yes.

dremelius

Stealthboy, I just noticed that you pointed out the difference in oil refill vs. new engine fill too! Where is that 2.6 liters?