'13 CTS-V Fuchs Sintopoid 75W90, 15k miOCI, 76k mi

[Emperors6]

All mileage is in kilometers not miles. The previous fill was: Red Line 75W90. Notes from slip: Street plus 48 hours on track. Only had Fuchs last change instead of Red Line, so used that. I hope that did not make this UOA pointless. This is first with diff cooler to reduce heat.

 

[FlyNavyP3]

Iron is way down, hard to say at this point if that's because of the cooler or the different lube, either way it's a huge improvement!

 

[Emperors6]

I think this lube is worse than what I had before. It's the diff cooler. It's been running constantly at track events.

 

[slo town]

OP, please explain your fluid history. The Oct 2016 and Nov 2016 numbers show a wild variation in viscosity and additive package compared to the others. 48 hours of track time? You were bending it over! IMO, the Fuchs was serving you well. Scott

 

[Emperors6]

Please check my previous posts. I've used RL Shockproof Heavy and before that it was the OEM fluid and RL 75W90.