I believe Mobil 1 has only focused on one thing for oil and extended service. The oxidation rate. But oil service is a big can of worms and one of them worms is the base number. Acid build up? Maybe POE helps there, don’t know? So many good choices out there, almost all of them point to shorter than 20,000 miles on oil.
More important question. Do you have an extended drain engine
You have the right of it. World of difference between turbo GDI and NA port injection as far as reasonable interval is concerned. Also have to take into account AFM (Chevy) and VCM (Honda) and any similar systems that thrash oil.
Back in the 70s, my Dad had a VW Beetle & a WW2 Willys Jeep. Whenever he changes the oil (HD30W) at 3K miles, he changes the oil at the same time on the Jeep & put in the used oil from Beetle. That Jeep runs like a champ...not picky in oil. As long as it got oil it runs.I change at 5,000 miles but will gladly put it in a jug if anyone else wants it.
Purolator was the first oil filter..
Use used oil from a car without an oil filter? Ouch.
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I validated a 30,000 mile OCI on my 2012 Mazda3 Skyactiv - a GDI engine. So, regardless of anyone else's personal anecdotes, my anecdote tells me I am fine with extended OCIs. 8-{D>
Curious minds would like to know the total miles on that Skyactiv engine?
I'll be happy to share that, Johnny - 123,700. I know that's not a huge amount, but the car's only ten years old and I've put less than 10,000 miles on it during the last two years. My last OCI was weird because I ran a full year with my last Mazda OEM filter and then managed to snag one last microGreen filter from an eBay seller and ran the oil another year with that filter on it. I just changed that oil from 2020 last weekend. Not that appearance means a huge amount, but those microGreen filters visibly cleaned up the oil. It's such a disappointment that the company went under. I used to be a notorious over-maintainer and have been trying really hard to embrace how much time, effort, money, and waste the newer stuff can offer. I stay out of most conversations about maintenance intervals because there's just no point in trying to convince people that it's nearly as bad to do too much as it is to do too little.
Say hi to the family in Sachse!
I have a friend - Methodist pastor - who once led the congregation in Sachse. I live some 40 miles away from there. I also had a coworker several years ago whose husband was a city council member there. It used to be BFE, but the DFW area has grown so much it's now another suburb.
Nah, not true at all that all cars are crushed after x time, i have never even heard of any country that does that...
They did it to A dutch guy where I stayed at. He had a small car and it looked nice. He explained about his car being crushed. I think it was too old.
Well if you buy it for 7500 maybe you should buy AFE that is good for 10 thousand miles. Overthinking things, if it is good for 20 K… Oil is a balancing act and there is a better oil for you IMO.since my eyes are getting weaker, when I see "20,000 miles" oil like the M1 EP 10W-30 that I buy, my brain thinks may be it says 7500 miles and not 20,000 miles that my eyes think to see so I change the oil at about 7500 miles!
in order to save money and not to change the oil too early, I may need to visit an eye doctor or a psychiatrist. However, the Dr. visits are going to cost me way more than price of early oil changes so I continue with early OCIs .
I used lots of recycled oil over the years. I've had a couple of oil burners/leakers that were used for work cars so when I'd change the oil in my better cars I'd rebottle the used oil for topping off oil in the work car. I did this in an '88 Escort for probably between 150-200K miles. When I retired the car at 518K miles for other reasons it was still running great. I'm not really sure how much it was leaking and how much it was burning but I know at the end it was leaking pretty good at the rear main.I change at 5,000 miles but will gladly put it in a jug if anyone else wants it.
