Rotella Gas Truck or QSUD?

My guess is they started with QSUD and tweaked it slightly. Let's say it's got an extra cut of GTL, a little more VII and little more calcium. I don't see anything to make me think I wouldn't buy it at a significant price difference.

On the other hand looking at what is and isn't on those VOA it looks like QSUD was run by someone with a history of low calcium numbers and the RGT by someone else. So those might just be the same oil, especially if different lot and different lab.
 
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I have run both in my 2015 2,7 F150 and the 2018 F350 for about 5,000 mile each and can't tell a dimes worth of difference. The RGT at the sale prices makes the oil the proper choice.
 
I would use either but if its on clearance if jump on that.
I havent bought any RGT but if it was priced around the same as Qsud I'd give it a shot
 
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