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Old Jul 14, 2020 | 09:55 AM
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Default Oil Level Question

I changed oil last in my 2000 Corvette Thursday before leaving for OH Friday morning. I raised the back up so I would completely drain the old oil out.There were over 5 quarts of old oil drained out. I put 6 quarts of oil (including filter change) back in. Checked the level and it seemed okay. Got back after 1000+ mile trip. Cleaned up the car last night and rechecked the oil. It appears to be over full. I hate to drain any out because that would mean less than 6 quarts. I also read that with a filter change it should actually be 6.5 quarts. Any one else have this issue? And yes, those are New Balance tennis shoes.


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Old Jul 14, 2020 | 10:10 AM
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When I changed my oil last month I put 7 quarts of oil in and a new filter (filled with oil). I ended up with 1/2 quart over fill and that is where I usually keep my oil level. Since I usually autocross and HPDE, as well as running on the street, I check my oil every time before I start the car. However, when I drain the oil, I leave it draining a good 1/2 or more after I remove the plug.
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Old Jul 14, 2020 | 11:42 AM
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Every time I get an oil change, I end up with it above the full line and on the "S" bumps whether I check it cold / hot / etc. My knee-jerk reaction is "you're a GM dealership and/or a Corvette specialty shop, how are you getting this wrong" but then I take a step back and read about the 6 vs 7 quart debate, the dipstick change, etc. I realize that 7 quarts is where it would be set for competitve driving, so I try to not think about it too much, although it's me, so that's what I do. I think you're fine.

That being said, if I had a QuickJack, I'd be setting the level myself.
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Old Jul 14, 2020 | 12:32 PM
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Originally Posted by DEFCON5
I changed oil last in my 2000 Corvette Thursday before leaving for OH Friday morning. I raised the back up so I would completely drain the old oil out.There were over 5 quarts of old oil drained out. I put 6 quarts of oil (including filter change) back in. Checked the level and it seemed okay. Got back after 1000+ mile trip. Cleaned up the car last night and rechecked the oil. It appears to be over full. I hate to drain any out because that would mean less than 6 quarts. I also read that with a filter change it should actually be 6.5 quarts. Any one else have this issue? And yes, those are New Balance tennis shoes.
Yep, with filter you should be putting in 6.5 quarts of synthetic oil.
I personally put in 6 and see where the level is. Usually, I have to add that extra .25 or .5 quarts to get it to the full mark. That being said, my 02 doesn't use any oil but my supercharged 99 does eat some. Nothing major, maybe a .5 quart in a 3000 mile range. I have no idea what my red 99 does as I haven't driven it enough to know
Thanks for buying New Balance shoes. They are made in the USA and every bit helps in this time of need

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Old Jul 14, 2020 | 01:37 PM
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When I had my C5, it always took 6.5 quarts to get the level up to the full mark.
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Old Jul 14, 2020 | 01:39 PM
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Originally Posted by Vetteman Jack
When I had my C5, it always took 6.5 quarts to get the level up to the full mark.
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Old Jul 14, 2020 | 02:05 PM
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I fill with 7 and call it a day. High mileage car that sees hard use - it doesn't hurt anything and I don't need to fuss around measuring out partial quarts.
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Old Jul 14, 2020 | 02:14 PM
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I see many posts about running 7 quarts - is there some science behind this? I do occasionally track so am interested. I'm guessing that 1/2qt over doesn't get it to the level of the crank throw....

https://community.cartalk.com/t/over...enario/53642/4
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Old Jul 14, 2020 | 02:26 PM
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Originally Posted by jjc508520
I see many posts about running 7 quarts - is there some science behind this? I do occasionally track so am interested. I'm guessing that 1/2qt over doesn't get it to the level of the crank throw....

https://community.cartalk.com/t/over...enario/53642/4
It's specified in your manual to fill with an extra quart for track use.



Last edited by Stingroo; Jul 14, 2020 at 02:29 PM.
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Old Jul 14, 2020 | 02:48 PM
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Thanks for all the input everyone. I feel better now.
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Old Jul 15, 2020 | 04:27 AM
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I run 6.5-7qts in my 383 built engine. The LS motor is known for using oil...it wont be up there for long lol
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Old Jul 16, 2020 | 07:30 AM
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I have 102,000 on my stock LS1 and it doesn't use a drop of oil between oil changes. I keep reading about how these motors use oil, but mine doesn't seem to.
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Old Jul 16, 2020 | 08:38 AM
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Originally Posted by tikiman
I have 102,000 on my stock LS1 and it doesn't use a drop of oil between oil changes. I keep reading about how these motors use oil, but mine doesn't seem to.
how high of rpm do you run it and how long do you keep it at said higher rpm ranges? Drive the car hard or a weekend cruiser show car only??
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Old Jul 16, 2020 | 10:53 AM
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I put 6.5 in & sometimes have to top off a lil before next oil change, but car is cammed/supercharged Z06 & I'm running 0W40 so not sure if completely relevant. Last time I didn't change myself had a shop do it & I use Amsoil I left 6 quarts for them to use & when driving home low oil light came on, sure enough the oil was just at the fill line, added 1/2 a quart extra like I typically do & instantly fine. My guess is the shop didn't want to just throw some mobil 1 5w30 into the engine to top off after using the Amsoil SS 0W40 I left

so IMO...for sure 6.5 quarts & as others suggested maybe a full 7 if you know ahead of time will be flogging it
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Old Jul 16, 2020 | 02:07 PM
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Originally Posted by dskinsler83
how high of rpm do you run it and how long do you keep it at said higher rpm ranges? Drive the car hard or a weekend cruiser show car only??

Before I retired, it was my "Friday" car. I drove it to work on nice Fridays (60 miles each way) as a treat. Since retiring, it pretty much only goes to the golf course and back. I put 388 miles on it last year (golf course is only 8 miles door to door). It has seen high RPMs on occasion. Blowing the carbon out kind of thing. But, for the most part, it was driven like a responsible adult would. It has seen the north side of 150mph, but only briefly, and only a couple of times. Mobile 1 and Wix filters for its entire life. Current oil in it is three years old and barely discolored.
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Old Jul 16, 2020 | 02:12 PM
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Originally Posted by tikiman
Before I retired, it was my "Friday" car. I drove it to work on nice Fridays (60 miles each way) as a treat. Since retiring, it pretty much only goes to the golf course and back. I put 388 miles on it last year (golf course is only 8 miles door to door). It has seen high RPMs on occasion. Blowing the carbon out kind of thing. But, for the most part, it was driven like a responsible adult would. It has seen the north side of 150mph, but only briefly, and only a couple of times. Mobile 1 and Wix filters for its entire life. Current oil in it is three years old and barely discolored.
And that is why it doesnt use oil. It is in the high rpm hard driving that the LS motors pull oil into the intake. 😉
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Old Jul 16, 2020 | 02:17 PM
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Originally Posted by tikiman
Before I retired, it was my "Friday" car. I drove it to work on nice Fridays (60 miles each way) as a treat. Since retiring, it pretty much only goes to the golf course and back. I put 388 miles on it last year (golf course is only 8 miles door to door). It has seen high RPMs on occasion. Blowing the carbon out kind of thing. But, for the most part, it was driven like a responsible adult would. It has seen the north side of 150mph, but only briefly, and only a couple of times. Mobile 1 and Wix filters for its entire life. Current oil in it is three years old and barely discolored.
Responsible adult should be flogging the bejeesus outta a non-collector dime a dozen 3 gens removed used vette. Like especially if you only have limited times to drive it as you suggest...should be ***** to the wall or take it to the track when you get a chance lol - seriously though, these cars are definitely meant to be driven hard & seem to respond well to it. When I bought my new-to-me 03Z w/ only 11,900 on the clock I can EASILY say that is absolutely the WORST condition it has ever been in over the 8 years & now 46k miles I have owned it (well...I drove 34k of those miles). Previous owner rarely drove it until he realized it was only ever 2-3 months, bushings dry-rotted, AC system seized & coroded, belts starting to get dried out, tires needed replacement for age not wear, gear oil stunk to high heaven & black as mud, etc etc etc

I beat the snot out of it when I drive it now, and its heavily modified, & anything that can or would break probably already has & since I drive it regularly I know when/if something is off.

I think at end of the day you should be putting in 6.5 & then just check every few months/1500 miles etc
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Old Jul 16, 2020 | 02:37 PM
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7 quarts here. Road trip from Cal to WI (3k) no oil use, track day, quart 7 is gone. Normal 2k add #7 back. It's been that way from day 1, and we are rolling 200k on the clock.

Mark.
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Old Jul 16, 2020 | 04:39 PM
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Originally Posted by C5Dobie
Responsible adult should be flogging the bejeesus outta a non-collector dime a dozen 3 gens removed used vette. Like especially if you only have limited times to drive it as you suggest...should be ***** to the wall or take it to the track when you get a chance lol - seriously though, these cars are definitely meant to be driven hard & seem to respond well to it.

I hear you, believe me I do, but I bought this car to "settle down". I had to sell my previous two daily commute cars after they became ultimately unstreetable. Hot rodding vehicles can be a dangerous, slippery slope.
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Old Jul 18, 2020 | 07:51 PM
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The batwing oil pan baffles prevent draining all the oil out unless the pan (car) is LEVEL.
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