04-08-2019, 11:45 AM | #15 |
Drives: 2019 Silverado Z71 6.2L A10 Join Date: Mar 2017
Location: Grapevine
Posts: 2,075
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Just for jollies FYI....
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04-08-2019, 11:47 AM | #16 |
Drives: ZL1 1LE Join Date: Oct 2016
Location: California
Posts: 1,297
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Without looking at the manual, I had to add close to 11 to get the proper amount via the dipstick. FYI, using 15w-50 exclusively. Car is 90% track only.
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04-08-2019, 12:16 PM | #17 | |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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Quote:
Do I recommend purposely filling with 11 quarts? No, but my point is that it isn't going to matter if you do. Absolute precision isn't necessary. I don't know exactly what the threshold for a true overfill condition is, but I guarantee it's a lot higher than 11 quarts. Personally, I use 10 quarts unless I'm on the track. In that case, I throw in a little extra because oil starvation in hard corners can and does happen on these wet sump systems. I track my car frequently, so at 6,000 miles I'm well over 30 oil changes. When I change the oil, I allow all of the oil to drain then add 10 quarts of Mobil 1 (using a portion to prefill the oil filter). There's no need to measure, start the engine, remeasure, etc.. It's all unnecessary.
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04-08-2019, 12:30 PM | #18 |
Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016
Location: Georgia
Posts: 5,813
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I knew I read the owners manual right. There it is in print. Looks like the dealership filled the Ops ZL1 with the Liter measurement. You are right Travis. My view on the whole matter is, it isn’t rocket science!!
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04-08-2019, 01:19 PM | #19 | |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,360
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Blow Motors
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Most importantly, how did Chevy respond with warranty support? Any issues with use of non-OEM tires? Thanks! |
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04-08-2019, 02:02 PM | #20 | |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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Quote:
I don't want to derail the thread, but here's two blown LT1s (same oil system as LT4) due to low oil pressure (references in posts 9 & 10). Talk to these guys for the details. https://www.camaro6.com/forums/showthread.php?t=534469
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04-08-2019, 02:20 PM | #21 |
Sure, why not?
Drives: 2016 Camaro 2SS, Jeep JKU Rubicon Join Date: Mar 2015
Location: SE Mass
Posts: 1,538
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I don't know how much wiggle room for overfilling there is on these engines, but "too much" oil can cause high crankcase pressures which can possibly affect seals, and oil foaming, which can affect a pump's ability to circulate enough oil. I base this statement not on LT* engine knowledge but on general engine knowledge.
Any idea what it is about the design that is causing starvation in corners, assuming that is real
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04-08-2019, 02:29 PM | #22 | ||
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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Quote:
It's not a big problem because almost nobody drives hard enough to expose the problem. It's "real" though. Al even touches on it in his response here. Quote:
When you upgrade to slicks, the 15W-50 might not be enough to save you. That's why a little extra oil is needed.
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04-08-2019, 02:53 PM | #23 |
Sure, why not?
Drives: 2016 Camaro 2SS, Jeep JKU Rubicon Join Date: Mar 2015
Location: SE Mass
Posts: 1,538
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Good info. Thanks!
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04-08-2019, 04:36 PM | #24 |
Drives: 2018 Hyper Metallic Blue ZL-1 M6 Join Date: Aug 2017
Location: Lexington KY
Posts: 75
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Having many years experience with wet sump and dry sump systems in both drag and circle track racing here are a few points that are relevant to any generation engine. How much is to much?? When the crankshaft throws or Rods start slapping like a belly flop in the pool. On my Dyno I could measure solid HP gains by getting the oil away from the crankshaft by the use of windage trays, oil pump baffles and side sump pans. Think about it this way, oil is picked up and “ropes” around the rotating assembly. This is considerable drag, no different then pulling the prop of your boat motor out of the water and watching the tach spike up, no drag. I can reduce the oil level alone on the dyno just to the point that the oil level stabilizes above the pick up and see a solid 20-25 HP gain.
Now switch a wet sump engine over to a good dry sump system and I’m seeing 45-50 HP alone. Some of the big blocks with large strokes in the 598-632 CI displacements really stand out. Bottom line is a good balance between oil control from the rotating assembly and not uncovering the pickup tube. Oil pump cavitation from foam or no oil will destroy a pump in no time. PCV system in light tension ring packages is vastly important. As long as oil temperatures are controlled and the pickup is not uncovered no issues, street or track.
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04-08-2019, 05:08 PM | #25 |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,360
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I've heard firsthand from owners about 4 failures, 2 with a dry sump C6 corvette and 2 with an LS7 Z28 (also dry sump). The same Corvette and Z28 Camaro each failed twice. The common culprit in this was banked left turn 1-2 at Auto Club Speedway Roval, with cars traveling 130-150 MPH.
So this can happen to dry sump cars also, but I've only seen it happen with Chevy dry sump. I doubt a GT3 or 458/488 would have this problem. |
04-10-2019, 01:20 PM | #26 |
LT4 M6
Drives: 2018 ZL1 1LE Join Date: Nov 2010
Location: Bloomington, IN
Posts: 1,249
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The manual says to add an extra quart for track days and to remove that when your track day is over. I keep 11 quarts in mine. No problems.
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04-10-2019, 01:48 PM | #27 | |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,360
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Quote:
Adding 1/2 quart wont hurt, but I'd prefer not to go 1 full qt over. |
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04-10-2019, 05:35 PM | #28 |
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10 every time
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