KIA Forte 5,398 miles Shell RGT 5w20

[izualangel]

So, this is the follow-up to last spring's UOA. Same oil, similar time interval but with 1k miles more on the oil. This summer was hot. Like brown lawn, megadrought, record setting hot. I wanted to see how the oil did with that heat. Just fine. I use the standard KIA oil filter from the dealer. I didn't top up the oil this time. The oil was a bit low at the time I changed it, but nothing unexpected.

 

[izualangel]

I should add: I have another two oil changes worth of RGT left. I should have bought more before it was discontinued.

 

[himemsys]

I'd be super happy with that report. About as perfect as it gets!

 

[tasch72]

I should add: I have another two oil changes worth of RGT left. I should have bought more before it was discontinued.

QSFS is essentially the same as RGT sans some organic additives. You're probably getting an improvement with a D1G3 version of QS