Urgent: Think my oil is low... But I can't tell
#41
Pro
Check when engine is cold and when warm experiment.
You will be suprised how much oil is hung up in the motor on a warm engine if you check a warm engine. I always expect at least 1/2 quart is hung up in a warm engine, if I were to check a warm engine.
Easy experiment to try at home. Use same parking spot so vehicle is same level each time. Check cold. Drive car for desired time or engine temperature. Return. Check oil after 5 minutes, than 10 minutes, than 30 minutes, than even after 1 hour. I think you will be suprised how much oil has not yet drained back into the pan.
Easy experiment to try at home. Use same parking spot so vehicle is same level each time. Check cold. Drive car for desired time or engine temperature. Return. Check oil after 5 minutes, than 10 minutes, than 30 minutes, than even after 1 hour. I think you will be suprised how much oil has not yet drained back into the pan.
Last edited by Nelag; 02-25-2019 at 04:14 AM.
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CorvetteBrent (02-26-2019)
#43
Pro
Thread Starter
You will be suprised how much oil is hung up in the motor on a warm engine if you check a warm engine. I always expect at least 1/2 quart is hung up in a warm engine, if I were to check a warm engine.
Easy experiment to try at home. Use same parking spot so vehicle is same level each time. Check cold. Drive car for desired time or engine temperature. Return. Check oil after 5 minutes, than 10 minutes, than 30 minutes, than even after 1 hour. I think you will be suprised how much oil has not yet drained back into the pan.
Easy experiment to try at home. Use same parking spot so vehicle is same level each time. Check cold. Drive car for desired time or engine temperature. Return. Check oil after 5 minutes, than 10 minutes, than 30 minutes, than even after 1 hour. I think you will be suprised how much oil has not yet drained back into the pan.
Last edited by KingCorvette93; 02-25-2019 at 06:10 AM.
#44
When I got my first C6, the corvette mechanic at the dealership told me before I drove off with my new car that the owners manual could answer any question that I may have about my new car.
#45
Team Owner
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C6 of Year Finalist (appearance mods) 2019
Racing or Other Competitive Driving
See your warranty book before using your
vehicle for racing or other competitive driving.
Notice: If you use your vehicle for racing or
other competitive driving, the engine may
use more oil than it would with normal use.
Low oil levels can damage the engine. For
information on how to add oil, see Engine Oil
on page 332.
Z06 Only: Be sure to check the oil level often
during racing or other competitive driving
and keep the level at or near the upper mark
that shows the proper operating range on
the engine oil dipstick.
Except Z06: Be sure to check the oil level
often during racing or other competitive driving
and keep the level at or near 1 quart (1 L)
above the upper mark that shows the proper
operating range on the engine oil dipstick.
After the competitive driving, remove excess
oil so that the level on the dipstick is not above
the upper mark that shows the proper
operating range
Blow by is common during high rpm runs......this is the reason so many owners use catch cans.
Now that is said, my 07 does not use oil either. But it is not uncommon for LS eng to use some oil.
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CorvetteBrent (02-26-2019)
#46
Race Director
Wet sumps are supposed to be checked cold. If you lost 25% of your oil in a short period of time, you have a not insignificant oil leak. My guess would be doubled up gaskets at the filter. Stick your head under the car, it should be easy to spot.
#47
Race Director
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Location: Pittsburgh
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2023 C6 of the Year Finalist - Unmodified
2022 C6 of the Year Finalist - Unmodified
2021 C6 of the Year Finalist - Unmodified
Geez, According to your dipstick, you are a quart low...simply add a quart & be done with it, stop fretting
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Vet Interested (02-25-2019)
#48
Don't listen to all the noise KingCorvette... nothing wrong with taking an analytical approach to addressing this issue rather than just "add a quart and move on."
#49
Melting Slicks
#51
I would personally just do a complete oil change and monitor it from there. Having bought the car you don't know truly how much oil was added during the so called "oil change" done by the dealership.
I wouldn't worry much about it. Pick up 6 quarts of your favorite synthetic oil (I personally use Pennzoil ultra 5W-30) and a filter of your choice (I personally use a WIX UP filter) and have at it. Takes 15 mins and your g2g.
Good luck.
I wouldn't worry much about it. Pick up 6 quarts of your favorite synthetic oil (I personally use Pennzoil ultra 5W-30) and a filter of your choice (I personally use a WIX UP filter) and have at it. Takes 15 mins and your g2g.
Good luck.
#52
Melting Slicks
What analytical approach would you recommend if someone didn't have clue how much oil was in the car the day he bought it and discovered 3K miles later that he was about a quart low?
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Jeff T. (03-03-2019)
#54
Le Mans Master
Member Since: Jan 2017
Location: Morris County New Jersey
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Modern day philosopher,
Sometimes it's better to be the one who searches for answers to a stupid question, than to be the one who asks the stupid questions.
Sometimes it's better to be the one who searches for answers to a stupid question, than to be the one who asks the stupid questions.
#55
Since the car should be warm for an accurate reading,
This is new to me. I am led to believe checking your oil before starting up in the morning would suffice. Perhaps with a dry sump. I take it you have a Z06, or GS? Your avatar doesn't show that.
This is new to me. I am led to believe checking your oil before starting up in the morning would suffice. Perhaps with a dry sump. I take it you have a Z06, or GS? Your avatar doesn't show that.
#56
Race Director
When most people think they have an oil leak they go underneath the car to look for any wet areas of oil. The owner's manual tells you how to read a dipstick, it is pretty self-explanatory just by looking at it. Why not change the oil and just keep an eye on it? Instead of all this rocket science?
#57
Team Owner
Member Since: Mar 2014
Location: Below the bottom of Berby Hollow, NYS
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Check it hot and cold, you won't notice any difference.
EDIT: Don! You beat me to the "rocket science" thing!
Last edited by Bruze; 02-26-2019 at 09:22 AM.
#58
Pro
Thread Starter
I think it's somewhat reasonable to trust that a car has enough oil in it when you buy it from an established dealership. I get it - dealerships don't care and just want to move on to the next customer - but it's not an outrageous oversight on my part. Plus, I think the oil deficiency is from a leak, not from the dealership shorting the car on oil. You know, life is about learning, and I learned to keep a better eye out. If being a quart low after 3,000 miles is the worst of my problems, then I'm doing ok.
Last edited by KingCorvette93; 02-26-2019 at 02:34 PM.
#60
Melting Slicks
While a lot of members here are a little **** in their cleaning and polishing behavior, you seem to have gone a different route ...
So not only don't you check your oil, you don't wash your car either. Remind me never to buy a used ca from you.
So not only don't you check your oil, you don't wash your car either. Remind me never to buy a used ca from you.