See if the dealership can inspect the engine for the fuel smell.
If smelling fuel, that is something you should put in writing. Then put a copy of the written note in the mail to Kia, another copy to your Service Advisor, & use this bobistheoilguy thread & your Blackstone report as documention. Tell Kia & your service advisor that you have documented it and are tracking the issue. Could actually be a bad injector, or maybe rings that aren't wearing in properly, don't know. Could be a Kia design problem too.
Fight the viscosity loss by using Mobil1 0w40 from Walmart. It will gradually thin out to a 20 weight over time, from fuel dilution. You'll at least have enough viscosity margin to keep the engine from wearing excessively over a normal 8,000 mile oil change interval here. Also, when you change the oil, don't fill it up to the full line. Fill it up to halfway between the Add Line and Full Line on the dipstick in case the extra fuel dilution is raising your level. And keep an eye on the level, checking it every Saturday, once a week.
Originally Posted by Brons2
My engine is DI but doesn't get near this much gas in the oil, .
The Niro is a hybrid. The engine stops & starts a lot during driving. That, and the DI, would contribute to this issue, yet Kia has a problem I think. I have a port injection Ford hybrid and I don't have fuel dilution.