All purchased from AAP. 6 different stores in 3 counties
like I said, I ain’t bashing any oil. I probably should not have mentioned the brand. If I had a do over, I wouldn’t. My mistake. I don’t hate RGT.
just trying to point out that some oils may work better for your cars than others. That’s all.
I am questioning if it is a good idea to change brands. I can’t prove anything but I am thinking it’s best to pick an oil and stick with it.
Gebo, Let's rescue this thread from the silliness of the forum crowd.
If it wasn't the oil, maybe it was a fueling issue. Do you get the gasoline on both cars form the same vendor?
I've seen this mahogany/ red colour in my sump in the past when I got a bad batch of gasoline in engine that didn't deal well with mis-blended or "phase separated" gasoline: Gas with well over 10% Ethanol.
If your Station Dispenser doesn't have an inline SAP filter you wont know until its too late.
Can you read you ST/LT fuel trims for clues?