on my '01 outback I thought it would be simple for my wife to check the oil level when looking at the dip stick, but even I am confused...The oil is checked Cold with the car parked in the Same spot on the driveway..at times the dip stick shows that 1/2 qt could be Added and other times when checking the oil, it is completely full...I have tried like this morning to add 1/2 qt..drove the car around the block and when re-checking the dip stick, it showed that I have added Well beyond 1qt of oil...the oil level orginally was between the 2 dots and now it sits well above the the notch on the stick

Youre pulling the dipstick, wiping it off, re-inserting, pulling again, and THEN reading.... right?

You also need to keep the dipstick straight when pulling it out, and read the side of the stick that faces towards the center of the car.

 

It's been well noted that the dip stick goes in at such an angle that you get a wicking effect on the side towards the oil, and it can make it look over full.

If you want an accurate reading pull out the dipstick and give any oil that traveled up the tube with it time to go back down.

 

Wait longer for cold than warm.

I also find a very large difference between indicated level when cold (overnight) vs. warm (even just driving a few blocks or sitting for an hour or so). Much larger than on any non-Subaru vehicle I have owned. The oil really shouldn't expand any more in a Subaru than anything else, so I'm thinking the post about angle of the dipstick is the main contributor. Either way, I wish their oil level indication method was more repeatable across a wider range of conditions.

Youre pulling the dipstick, wiping it off, re-inserting, pulling again, and THEN reading.... right?

that is exactly what I am doing

If you want an accurate reading pull out the dipstick and give any oil that traveled up the tube with it time to go back down.

 

Wait longer for cold than warm.

the oil is always checked cold,

I also find a very large difference between indicated level when cold (overnight) vs. warm (even just driving a few blocks or sitting for an hour or so). Much larger than on any non-Subaru vehicle I have owned. The oil really shouldn't expand any more in a Subaru than anything else, so I'm thinking the post about angle of the dipstick is the main contributor. Either way, I wish their oil level indication method was more repeatable across a wider range of conditions.

I was made aware of this on my first oil change...the exact same amount of oil was added too what was drained out and it showed "low" on the stick, while before the oil change it registered "full".. I guess the best way to handle this situation is to add the amount of oil that subaru requires and just leave it be until the next oil change and when checking the dip stick and seeing oil between the marks, also leave it alone..just trying to make it easier for the wife without her worrying to much

The question of Subaru oil dipsticks comes up regularly on this Forum.

 

NOTE TO SUBARU: If you can muster enough engineering resources to have have fixed the Head Gasket issue,

then PLEASE PLEASE PLEASE have someone redesign the oil dipstick so it is easy to use.

It can't be that difficult.

Funny, my 1992 EJ22 was very reluctant to give consistent readings.

 

The EJ201 in my 2000 Impreza is 100% consistent. Never gives a false reading. And the oil pan and dipstick seem unchanged.

 

The Forester 2.5XT (EJ254/2006) I ran for a year wasn't 100& consistent, it had to be parked absolutely level and still for ten minutes, then have the oil filler cap removed, dipstick pulled, dried re-inserted...

 

Opening the oil filler seemed to encourage the last oil hanging around to flow down into the pan.

I'm beginning to think that you may need to jack up the left side for a half hour, then the right side, let sit for one hour with dipstick out...then if you want to be really sure drain the oil into a pan and measure it then reinstall.

I just put a half quart in whenever it looks low because I don't think overfilling hurts it and underfilling sure does.

There really is no need for checking the oil to be such an inconsistant pain.