Those with 150,000 miles or more, check in

I remember you being a user of M1, you always used that brand? Also what maintenance for coolant, ATF, etc?
As for coolant I empty the coolant tank every 10K OCI and use ST coolant to top off the 2003. As for the 2017 I do the same but use Prestone coolant for Fords. I also turkey baster the master cyl reservoir every 10K OCI. This has always worked well for me.
 
As for coolant I empty the coolant tank every 10K OCI and use ST coolant to top off the 2003. As for the 2017 I do the same but use Prestone coolant for Fords. I also turkey baster the master cyl reservoir every 10K OCI. This has always worked well for me.
I’m surprised that you change the coolant so often as you really don’t need to do it that much. Even with that method you use I bet that every 20-30k would still be fine. I just did the first coolant change in my Civic at 167k and in my Corvette at 66k. Modern coolant lasts a very long time.
 
Purchased a 2014 Ford F-150 with the 3.5 EcoBoost engine back in December. Had around 145,000 miles when bought. Turned 150K last month, now has 151,000 miles. Runs great. Might have burned a half a quart or so in that time. Planning on a move to Arizona next month, so, fresh oil change coming before or after the move.
 
I'm posting this in this section instead of the General section because it definitely has a lot to do with lubrication.

I just wanted to see how many people here have over 150,000 miles on their original engines, to see what kind of oil you've been using and what kind of intervals.

We talk about a lot of different oils on here, and critique a lot of UOAs, but the absolute best way to find out if any particular routine works, is to look at those people who have had success with it by getting long life from their engine! That is truly what we are all trying to achieve here.

So if you've owned your car since new (or at least know the exact prior history of it from new), please step in and give us your input!

I think this could be a very interesting topic!
I've had a 2014 Subaru Forester I bought new with about 6 miles on the odometer. It has a bit over 165,000 miles on it now. About 6k oil change intervals.
 
Original owner of a 2010 Infiniti QX56 with the V8. 250k miles and still going. Change oil every 10k, using Mobil 1 5W-30, regular or high mileage, whatever is cheaper at Costco. It currently has a very slow valve cover gasket leak I need to address at some point - loses about an 1/8 quart per month of driving.
 
I’m surprised that you change the coolant so often as you really don’t need to do it that much. Even with that method you use I bet that every 20-30k would still be fine. I just did the first coolant change in my Civic at 167k and in my Corvette at 66k. Modern coolant lasts a very long time.
it's hardly a full change. The tank is a pretty small fraction of overall system capacity.

I think what he's doing is sort of like draining a quart of oil and topping off every 1k miles. He's basically doing 100k coolant service but, doing it in 10% chunks every 10k miles. In that light, it doesn't seem very drastic to me.

I myself do this with transmission fluid. Instead of doing a 3x spill and fill every 30k miles, I just do a 1x spill and fill every 10k or so.
 
2014 outback with 156k. Running HPL in engine/trans/diffs, at least 10k OCI’s though still trying to figure out how long I can stretch it! Have only changed rear wheel bearings and alternator pulley clutch. 23rd year running Subarus and the fifth one I’ve owned, never let us down.

2007 Sporttrac with 4.3l 3-valve, 214k, OCI is every couple years. The workhorse, and I won’t lie, somewhat neglected! Just did melling high volume oil pump and timing components. Only thing that has actually gone bad on this truck is the cam position sensor, super reliable. Like the Outback, this one running all HPL as well.
 
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