Check your Oil Level - Page 2 - McLaren Life
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post #16 of 25 Old 01-05-2017, 06:58 PM
 
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So I just ran a check on my oil as well. Noticed I'm a few notches below the green line? Does 1 quart equate to about 1 notch? Is optimal level even with the green line?
Noooo!!!! See the chart posted by Valentin in post #6 above!
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post #17 of 25 Old 01-05-2017, 07:26 PM
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That's an interesting theory. But I don't know if it's what's happening here because I only added 1.25 quarts to go from the bottom red tick to the to the bottom green tick. Doesn't seem like 1.25 quarts would cause aeration in a dry sump system with 8.5 quart capacity. Fully topped off to the maximum tick is around 8.75 quarts. I was essentially down to 7 quarts based on what I added in. For the dry sump system to aerate on anything over 6 quarts seems like a stretch. Interesting theory though.
It puzzles me too, but I was simply trying to figure out how low oil might cause rough idle. It may be that your rough idle was just coincidental, and caused you (fortuitously) to check the oil level. If the rough idle was truly caused by low oil and cured by topping up, then you have the head-scratcher. Unless the pressure pump is (borderline) sucking air, I can't see how low oil level in the system can cause such behaviour.

It would be interesting to know how much oil the reservoir holds. A lot of that 8.5qt capacity will be used in filling the oil channels and internal spaces, pumps, oil cooler and miscellaneous plumbing, with some held up (especially with a cold engine and high oil viscosity) in drainage areas.
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post #18 of 25 Old 01-06-2017, 01:18 AM Thread Starter
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So I just ran a check on my oil as well. Noticed I'm a few notches below the green line? Does 1 quart equate to about 1 notch? Is optimal level even with the green line?
No. Add in quarter or half quart increments then retest if below the green. You don't want to overfill.

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post #19 of 25 Old 01-06-2017, 01:23 AM
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No. Add in quarter or half quart increments then retest if below the green. You don't want to overfill.
Perfect! Thank you! I am correct to assume that optimal level is even with the green line?

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post #20 of 25 Old 01-07-2017, 01:18 AM
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Perfect! Thank you! I am correct to assume that optimal level is even with the green line?
1/10th of a quart is about one tick. Don't put 1/2 of a quart at a time.

You need to be very careful that you don't over fill it.
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post #21 of 25 Old 01-07-2017, 02:51 AM Thread Starter
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1/10th of a quart is about one tick. Don't put 1/2 of a quart at a time.

You need to be very careful that you don't over fill it.
The chart shows 1/5th is one tick, and it's not even linear because it jumps around in the chart. Real world is more like 1/4. If he's a couple ticks below the green, going 1/2 quart to start and a 1/4 quart after won't overfill. It would take almost 1 full quart past the green line to hit the red overfill according to the chart (Remove 1 liter). If you want to play it real safe, 1/4 at a time is fine, based on my experience. Doing in 1/10 increments would take forever to get back to the fill line. Realistically, he's probably 1/2 - 3/4 quart low if he's a few ticks below the bottom green line.

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Last edited by Excelsior; 01-07-2017 at 03:07 AM.
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post #22 of 25 Old 01-07-2017, 02:44 PM
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1/10th of a quart is about one tick. Don't put 1/2 of a quart at a time.

You need to be very careful that you don't over fill it.
Thank you!

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The chart shows 1/5th is one tick, and it's not even linear because it jumps around in the chart. Real world is more like 1/4. If he's a couple ticks below the green, going 1/2 quart to start and a 1/4 quart after won't overfill. It would take almost 1 full quart past the green line to hit the red overfill according to the chart (Remove 1 liter). If you want to play it real safe, 1/4 at a time is fine, based on my experience. Doing in 1/10 increments would take forever to get back to the fill line. Realistically, he's probably 1/2 - 3/4 quart low if he's a few ticks below the bottom green line.
I appreciate that! So I assume as I fill I should re-check the oil level doing the entire procedure again?
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post #23 of 25 Old 01-07-2017, 02:45 PM
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Complete side note... Just so you guys are aware, the netting in the front of the car (within the trunk) hold two quarts perfectly side by side (standing vertically).

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post #24 of 25 Old 01-07-2017, 05:40 PM Thread Starter
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Thank you!



I appreciate that! So I assume as I fill I should re-check the oil level doing the entire procedure again?
Yes, recheck in between each increment that you add. I would then go out and drive, and recheck again at full running temp.
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post #25 of 25 Old 01-08-2017, 04:50 AM
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Thank you!



I appreciate that! So I assume as I fill I should re-check the oil level doing the entire procedure again?
Yes, you just need to make sure you don't over fill it.
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