Hi guys. Done a oil change on my 1993 Subaru Impreza today. Put 4 litres of oil in the engine. I took the car for a 30 mile motorway journey. Came back home and parked up for 3 hours and checked the dipstick and no oil at all! The dipstick was dry!

Anyone had this problem before or know what it could be! No oil leaks at all!

Please help!

 

Should've put 4.5 litres in it!

 

Didn't you dip it before you drove it? If there is no leak then either your engine burns loads of oil or you didn't put enough in. Running it low can damage your engine so be more careful in future.

 

I did check it before the drive. It showed in between L and F

 

How much oil does a Impreza take at Oil and Filter change?

 

Did you start the car after filling it then let it settle and check gain before you drove it?

 

Usually 4.5 to 5L, but if youv got a front mount oil cooler they can take an extra 0.5 to 1 L.

 

No front mount intercooler. Just a top mount. TD05 20g turbo.
Shall I put in another litre?

 

Put in another half and see.

 

He was meaning an oil cooler rather than the intercooler. Chances are you won't have, but if you do, it increases the volume of oil the system will consume before it shows on the dip.

 

If the car is using that much oil it has to showing signs like blue smoke

 

Did you really just ask that question?

Yes you should put more oil in!

 

Ensure the car is parked on the level.
Warm the engine (to ease the draining process).
Pre-fill the new filter with fresh oil. Fill to the very top and keep topping up (it might take 10 minutes or so to fully absorb the oil).
Remove the oil filler cap (to allow the oil to drain easily).
Remove the plastic under tray.
Drain all of the old oil from sump (be careful it will be warm/hot and gushes out so be ready and have a suitable sized (depth & width) container for the oil to drain into). It will take a few minutes to run dry.
Remove old filter (you should be able to do this by hand, if not use an oil filter wrench or alternatively stab with a screwdriver for leverage if necessary).
Wipe the filter seating & apply a small amount of fresh oil to the face of the rubber seal on the new oil filter and then fit the pre-filled filter. Make sure the thread is not crossed and do not over tighten as this can lead to leaks. ¾ to a turn after it begins to feel tight is about right.
Wipe the sump plug seating and apply a new washer to sump plug and tighten.
Fill the engine with fresh oil of the correct grade (see your owner’s manual) to the full marker on the dipstick (you should allow a few minutes for the new cold oil to settle to get an accurate reading). The quantity of oil you’ll need is 4.5 litres. Note: Never over fill above the full marker, especially on Classic Scooby’s to help prevent blow-by oil vapour on boost. This can sometimes lead to slight hesitation being felt as boost starts to ramp up on Classic’s.
Refit the oil filler cap and ensure the dip stick is put back.
With the plastic under tray still off, start the car as normal and allow to warm up for 5 or 10 mins.
Switch off engine and check for leaks around the new oil filter and sump plug washer.
Recheck oil level and top-up to full if required.
Go for a test drive round the block, recheck for leaks and top-up to full if required.
Refit plastic under tray and you’re done.
Recheck oil level once a week (as you would normally do - right?).

4.5 litres of new oil of the correct type and grade