RedLine 15W50, 8k mi OCI, 69k mi, Cadillac CTS-V

[Emperors6]

All mileage is in kilometres. OLM was at 0%.

Notes from oil slip: RL 15W50 for summer due to track (ab)use, top-up oil: 1.5qt of RL 15W50 and 1qt of RL 5W30. Will switch to 5W30 for winter. 30hrs of track use on oil.

 

[bigj_16]

Thanx for posting.

 

[dparm]

Does your CTS-V have the factory recommendation to run 15w50 for track use?

 

[Emperors6]

Nope. That's the Camaro, Corvette and I think maybe the third generation CTS-V. However, after looking at the oil temperatures at the track pulled from the OBDII reader and the recommendation of my mechanic that has a lot of experience with LS engines I decided it would be a good idea since it was consuming quite a bit of oil at the track. Now, with the heavier oil, it is much reduced though there is still some oil consumption. However, that's to expected with a boosted engine under heavy load. On the street, there is no significant consumption.

 

[OneEyeJack]

Those old-fashioned pushrod V8's appear to be alive and well. Thanks for posting. Who would have thought someone would take a Cadillac to a track day in the past. "....I found out my Coupe de Ville understeered a bit when I turned the wheel at the first turn and ended up in the parking lot with an angry corner worker on the hood....."

 

[Rand]

What was previous oil. Was this the first interval on redline?

 

[Emperors6]

Red Line 5W30 was the previous oil. I've switched to Red Line since early 2016. All of the samples on the sheet above starting in 9/2016 are RL.