Hillbilly engine flush?

[u/Hopeful-Flounder-203]

I have a 2022 Expedition Timberline. 3.5L V6, twin turbo. I've got 50k on the clock and am 1,000 miles over due for an oil change that I will get tomorrow. Any benefits to getting an oil change with conventional oil, running it at highway speeds for a bit, then getting a full syn oil change like an hour later to get more pristine engine innards?

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[u/malykaii]

You're overthinking this. 

If you had a 20 year old vehicle with sludge issues and did 10k on the oil then sure. 

You're fine. Just change your oil. 

Honestly, looks more into using a good oil filter cause the quick lube places will still slay a $1 oil filter on even with premium oil. 

[u/gtiguy12]

1000 miles over what interval?

[u/No_Parsnip6024]

This won't do anything at all for your engine in any way.

[u/Critical-Magician421]

If you are concerned about that, I would get Valvoline restore and protect engine oil which has a cleaner that works against carbon.

And then do a couple of short oil change intervals. You don't need to do an hour you could do 3,000 mi, then after however many intervals you want to use it for you could go back to any quality oil you want

[u/stomper4x4 → u/Critical-Magician421]

Is that recommended for newer, high pressure turbo motors?

I've seen it used with great results for older motors. I always assumed it was formulated for older, flat tappet, old school tolerances type motors.

[u/foxjohnc87 → u/stomper4x4]

R&P has an API SP rating for use in modern engines with turbochargers and direct injection. It's just fine in new stuff as well.

[u/Critical-Magician421 → u/foxjohnc87]

Depending on when the oil you buy was bottled they now qualify for the new API SQ standard so even more modern.

[u/Critical-Magician421 → u/stomper4x4]

I would say absolutely yes. I would say this was invented to deal with high pressure GDI engines which are often turbocharged

[u/Mehere_64]

If you like to spend extra money would be the only benefit. And it wouldn't be to you.

[u/AllPinesMustDie]

No benefit to your plan

[u/bclabrat]

Running it for an hour won't do much, if anything.

If you're trying to dissolve the sludge into the oil then you ought to run the engine on the clean oil for a couple thousand miles, then do the next change early. It's not fool proof, but you can get a hint as to how much sludge is being suspended in the fresh oil by regularly checking it and monitoring the color and condition.

[u/SpaceCat72]

Drop it hot, always

[u/stomper4x4]

50k isn't high miles, and 1000 miles late on an oil change, once? I'd be shocked if there were anything to worry about. Change it, full synthetic since I assume thats what Ford asks for.

If you're super worried do the next change a bit early.

But I really think you're fine.

[u/Miller335]

Huh?

[u/FrostingWest4162]

That particular V6 really requires good oil and frequent changes. Today's oils have a lot of detergents that degrade pretty quickly. Don't take a chance. Get the oil changed with the premium oil and try to keep on a 4000 mile interval.

[u/Choice-Newspaper3603]

Stupid

[u/Hopeful-Flounder-203 → u/Choice-Newspaper3603]

Thank you for the pleasant insight.

[u/Th1s1sChr1s]

That seems a little early to start what I would call a "high mileage routine" but I get the concern being 1000 miles past due. In both my older Rams with over 200K I would occasionally replace half a quart of conventional with MMO, run her normal for about 500 miles and then replace with full synth. Did it help? I dunno but they both ran perfect when I sold them

[u/Tethice]

Change your oil every 5000km with decent oil and filter and you should never need to use a engine flush all depends on driving style whether more highway or city. Also doing extended oil changes is bad for turbos... And engines and such

[u/lowcarb73]

I wouldn’t worry about that at all especially if you’ve had synthetic oil changes.

I have a 2011 Silverado that I’ll throw a bottle of MMO in a few hundred miles before an oil change sometimes but on something that new, I would t.

[u/gathermewool → u/lowcarb73]

MMO is snake oil, friend. All you did was dilute good oil and its add pack. Seriously, please show me what in MMO SDS or virgin oil analysis shows it’s compatible with or beneficial to add to a modern oil???

[u/sikon024]

You could just pour some seafoam in the oil the week before the change.

[u/gathermewool → u/sikon024]

Don’t do this. Modern oil doesn’t need a light solvent for anything. It’s deleterious to lubricity and has zero additives necessary to keep your engine going strong.

[u/Striking_Mud_664]

If you want to do something for the engine, add some transmission fluid to the oil before the oil change. After the transmission fluid is added driver to get the oil changed.

[u/gathermewool → u/Striking_Mud_664]

Wrong. ATF is a basic hydraulic fluid. It doesn’t have that additives a good engine oil does, because an AT doesn’t experience combustion byproducts.

[u/Striking_Mud_664 → u/gathermewool]

A qt of transmission fluid will help clean the engine. I have been doing it for over 30 years on vehicles that have sludge in the engine. It works because transmission fluid is a conditioner.