One of the final steps in the Oil change service on your DB9 is to refill the oil. Okay, Okay, I hear you laughing about this too (is he going to tell us which end of the funnel goes down?). No, but there are just a few bits of advice to share (including that the narrow end of the funnel goes down ;>).
Refill the Oil BEFORE you reinstall the front under tray. You need to be able to check the sump drain plug and filter for leaks, so leave the tray off for now.
Remember that your Oil Filter is empty, so there is a void in the system. This requires that you refill in essentially 2 stages.
The process I followed was:
- I laid out an old rag surrounding the Oil fill port to catch any drippings.
- Next I start by adding about 11 quarts.
- Wait 1-2 minutes to allow it to all drain down to the sump.
- Check the dipstick and then carefully add enough oil to get it to the max level mark.
- Don’t overfill! Bad things happen.
- Start the engine and let it idle for 2 – 3 minutes to allow the Oil to circulate.
- While the engine is running, check your sump drain plug and Oil Filter to be sure you haven’t got any leaks. This is under the car work with the front under tray still removed as noted.
- Shut the car off and wait 2-3 minutes to allow the oil to settle to the sump.
- Check the dipstick again. It should be down some (since the Oil Filter is now full). Carefully finish adding Oil to the max level mark.
- Replace the Oil fill cap and cleanup with the rag – You’re done!
Notice how I’ve been flip flopping about 12 or 13 quarts? This is as good a place as any to remind you that the DB9 engine as originally fitted may have had an oil starvation problem to the rear most cylinders (6 and 12). The factory issued a Field Service Action (FSA) to fit a shorter dipstick which would have us then keep about an extra quart of oil in the sump (to mask over the issue I guess). You should be sure that it you have one of the affected cars to get the dealer to complete the repair. Field Service Action FSA 165V2 was issued in May 2008 and was for vehicles VIN range A00001 through A10286 (which included my car A01936). You can read a full copy of the FSA here.
If you are looking at the P/N on your dipstick to see if it’s the correct one – the FSA says the corrected part is 4G4E-6750-AC. Checking is simple, remove your dipstick, clean off the oil and look on the opposite side of the max-min. Otherwise check with your dealer and the Aston Martin service database should have a record if the FSA was completed on your VIN.
[Updated January 4, 2017 – I have a more detailed article on the FSA replacement dipstick and its length that you can read here]
Here is a really short video of the Oil refilling process.
Up next is how to reinstall the Front Under Tray.
Aston Martin actually released an official service bulletin (SB251) on how to check your engine oil properly, leaving no doubt to the process. Geez, they even want the min/max marker facing the engine block. Aston Martin Service Bulletin 251 on How to Check the Engine Oil. Check out the Service Bulletin here.
Here is what is listed in your Official Aston Martin Owners Manual about Engine Oil:
Mobil 1 Recommended (0W-40) and (0W-30)
To Achieve the required high performance of synthetic lubricants, do not mix with mineral oils.
Engine Oil Specification:
An oil of 0W-30 viscosity meeting Aston Martin specification WSS M2C9213-A/B or 0W-40 viscosity meeting Aston Martin specification WSS0M2C937-A is preferred. Where this is not possible, oil meeting the following standards may be used.