So i smell some gas in my oil. I first smelled it shortly after a VERY VERY cold start about a month ago. It hasnt gotten worse since then or anything, but i feel like i should change the oil soon after i get some seafoam in it. Anyways, my question is how urgent is it that i change the oil? Also, i changed the oil a few weeks prior to noticing the gas smell and switched from 5w-30 to 5w-20 for the first time. It's a 2000 tl so the recommended oil is 5w-30. Could switching to a less viscous oil have had an influence on the gas getting mixed into the oil?

 

Switching to 5W20 wouldnt have caused gas to get in the oil. Change the oil sometime soon and drive the car, see if it comes back. Any smoke from the pipes?

 

Yea there's just a bit of smoke from the exhausts but not much.