Does doing that actually help clean up varnish and accumulated ick ?Do a few short (3k miles) oil changes to clean it out a little. Rotate the tires every 5k. Change the differential fluid every 30-40k. Don't neglect the vehicle or you'll have to buy a new one and good luck in this market.
That sucks my 16 mazda 6 never burned a drop of oil ever.Well I have been so busy in the last year and a half I did not change the oil in that time period and I checked the oil tonight and it did not read on the dip stick. I know the car burns about 1/2 quart in 7000 miles since it was new. I scratched my head and checked the log book and it was changed in Jan 2020 with about 50k miles on it. It has about 70k on it now. I put a quart in it and just barely got to the tip of the dip stick. I am going to change it tomorrow. So I hope I have not done any damage. It is a 2016 Mazda CX5. It has been a great car and so has my 2016 Mazda 3. We moved in that period of time and I did a lot of sight prep to get ready for that move and we had to hurry out of our place of 20 yrs. The reminder had not been set either. I told the wife if I never drive your car, I don't think about maintenance on it. She is going to have to get better at checking the log book about every 6 months. I guess the tires need rotating as well.
If YOU KNOW your engine is burning oil, your index finger should always have a dirty ring around it from constantly checking your oil level. Checking and changing oil is not a major job, that should be put off for a year and a half...... Especially on a known oil burner.
Varnish, probably not. Accumulated ick, potentially. If you're super duper sludged or varnished you need something stronger. Kreen, BG44K, Valvoline Premium Blue Restore, something potent like that. But a few short oil changes can get the superficial crap out and get you back on track in some cases.Does doing that actually help clean up varnish and accumulated ick ?
Checking oil (at least in some engines) after a drive is wrong. You get oil all over the stick and I doubt you can wait half an hour at the pump waiting for oil to drain back to the sump.And I would have to drive it to check it at the pump LOL.