(R18) Oil capacity

mO 64 StAnG 06 · 09-15-2007, 04:51 PM

Here in the past few day's I've been getting paranoid with how much oil I've been putting into my R18.

I always fill up the oil filter completely and then empty out up to 4 quarts of oil into the car.

I think that is the recommended amount, but checking the oil level with our dipsticks is impossible.

Is 4 quarts too much? I didn't know over filling was bad... Or is a little overfill that bad?

mO 64 StAnG 06 · 09-15-2007, 07:48 PM

Anyone?

***Zeuceone*** · 09-15-2007, 07:50 PM

overfilling is bad.

GreenHokie · 09-15-2007, 07:54 PM

Manual says 3.9 Quarts, including the filter. I think you're saying you put 4 quarts + enough to fill the oil filter (do you pre-load it or something?) - might be too much. I haven't changed my oil yet, though, so...

BigT · 09-15-2007, 08:00 PM

A "little" over is not horrible. But on a system which holds less than five quarts a little really is a little. Even a half a quart is over 10% too much.

I think the Owners manual says total system capacity is 4.7 quarts. But refill capacity is closer to 4 quarts (Edit: 3.9 quarts. Thanks GreenHokie). I agree it is very hard to see new oil on the dipstick. It is easier to see in the checkered area, so I recommend putting less than the full amount in and then adding little by little (checking as you go) untill it is at the top of this area. If you go over it is very hard to tell how far over.

Edit: Very much over can be bad. The crankshaft will be spinning through more oil than it should be. This can cause oil foaming and other problems.

ryker · 09-15-2007, 08:56 PM

If your MPG drops then you will know your overfilled.

mO 64 StAnG 06 · 09-15-2007, 11:01 PM

Well I've always filled a full 4 quarts counting the filter pre-loaded too.

If that .1 quart is actually enough for concern I might just start leaving a tad bit left over next time.

Thanks for the responses guys.

BigT · 09-16-2007, 09:30 AM

Quote:

Originally Posted by mO 64 StAnG 06

Well I've always filled a full 4 quarts counting the filter pre-loaded too.

If that .1 quart is actually enough for concern I might just start leaving a tad bit left over next time.

Thanks for the responses guys.

The amount listed in the manual is an estimate. It is usually pretty close, but how much oil you get out can vary depending on oil temp, if the car is level or not, etc. I would recommend you put about a half quart less in and then check and see if you can tell where the oil comes on the crosshatch/checkered section of the dipstick.

However, I doubt you are hurting anything just putting 4 quarts in.

09-15-2007, 04:51 PM	#1 (permalink)
mO 64 StAnG 06 Senior Member Join Date: Jan 2007 Location: Wylie, Texas Age: 20 Posts: 2,993 iTrader: 0 / 0%	(R18) Oil capacity Here in the past few day's I've been getting paranoid with how much oil I've been putting into my R18. I always fill up the oil filter completely and then empty out up to 4 quarts of oil into the car. I think that is the recommended amount, but checking the oil level with our dipsticks is impossible. Is 4 quarts too much? I didn't know over filling was bad... Or is a little overfill that bad?

09-15-2007, 08:00 PM	#5 (permalink)
BigT Senior Member Join Date: Jun 2007 Location: Duff Beer Krusty Burger Buzz Cola Costington's Department Store Kwik-E-Mart Stupid Flanders Park Posts: 1,577 iTrader: 1 / 100%	A "little" over is not horrible. But on a system which holds less than five quarts a little really is a little. Even a half a quart is over 10% too much. I think the Owners manual says total system capacity is 4.7 quarts. But refill capacity is closer to 4 quarts (Edit: 3.9 quarts. Thanks GreenHokie). I agree it is very hard to see new oil on the dipstick. It is easier to see in the checkered area, so I recommend putting less than the full amount in and then adding little by little (checking as you go) untill it is at the top of this area. If you go over it is very hard to tell how far over. Edit: Very much over can be bad. The crankshaft will be spinning through more oil than it should be. This can cause oil foaming and other problems. Last edited by BigT; 09-15-2007 at 08:10 PM.

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09-15-2007, 07:48 PM	#2 (permalink)
mO 64 StAnG 06 Senior Member Join Date: Jan 2007 Location: Wylie, Texas Age: 20 Posts: 2,993 iTrader: 0 / 0%	Anyone?

09-15-2007, 07:54 PM	#4 (permalink)
GreenHokie Member Join Date: Aug 2007 Posts: 53 iTrader: 0 / 0%	Manual says 3.9 Quarts, including the filter. I think you're saying you put 4 quarts + enough to fill the oil filter (do you pre-load it or something?) - might be too much. I haven't changed my oil yet, though, so...

09-15-2007, 08:56 PM	#6 (permalink)
ryker Senior Member Join Date: Sep 2007 Posts: 3,527 iTrader: 1 / 100%	If your MPG drops then you will know your overfilled.

09-15-2007, 11:01 PM	#7 (permalink)
mO 64 StAnG 06 Senior Member Join Date: Jan 2007 Location: Wylie, Texas Age: 20 Posts: 2,993 iTrader: 0 / 0%	Well I've always filled a full 4 quarts counting the filter pre-loaded too. If that .1 quart is actually enough for concern I might just start leaving a tad bit left over next time. Thanks for the responses guys.