wemay
Site Donor 2023
I use fuel system cleaners (Techron or Gumout Regane) after every oil change. Both companies have told me over the phone, this is fine.
If carbon is filling your oil collection container, I'd use a different oil filter at much shorter intervals for a good while. Something isn't normal with your vehicle. Good luck and check back in.
If carbon is filling your oil collection container, I'd use a different oil filter at much shorter intervals for a good while. Something isn't normal with your vehicle. Good luck and check back in.