[WARP TEN]

Originally Posted by A26B

Glen,
My apology if you already are aware of this;
The LT5 is notorious for slow oil drain-back to the oil pan from the top end after shutdown.

I noticed that you mentioned "just topped the oil up". If you did this based on the dipstick reading after turning the engine off, it is highly probable that you have overfilled. The best time to check oil level in an LT5 is the first cold start of the day.

Absolutely correct, Jerry. I learned this the hard way when first bought my '93 ZR-1 in 1994 and drove it home to Chicago from the east coast. On my first gas stop I checked the oil and it was more than a quart down! I was really worried so I added a quart and a half. Didn't discover the error of my ways until I was home and read some articles about it in the old Registry newsletters. Fortunately it must have just burned off on the rest of the trip because I never had a problem after that.

And I have had a big adjustment with my 2016 Z06. If one checks the oil in the morning before the first run--my ZR-1 habit of 20 years--it will show empty--no oil on the dipstick. The procedure for the newer dry sump Corvettes is to get the engine to operating temp (at least 175 degrees), turn the engine off, wait for between 5 and 10 minutes, THEN check it. Same old story as with the ZR-1s--few people actually know this, including some GM techs. When I attended the Spring Mountain Ron Fellows Corvette HPDE school, in my group of 12 drivers 10 did not know the procedure on how to check the oil on their cars. Scary.--Bob