Extended Interval HPL Oils For a 2.3L MPC Bronco?

[McRightclick]

Hello all,

I am getting ready to order a 2026 Bronco 7MT with the new(ish) 2.3L MPC engine and wanted to get some feedback on which oil you folks would recommend. I've been about convinced to take the HPL pill, but I'm not sure which of their offerings to use. Is the basic PCMO good enough for my application?

My use case is roughly 6k miles per year with a 60/40 mix of city/highway. I try to treat my engines nicely - gentle throttle applications when cold, but also no problem running out full throttle to redline once in a while when everything's warm. I live in SE Idaho and it can get pretty **** cold here, so am leaning towards either a 0W-30 or 5W-30. If it matters, elevation here is ~5000 feet.

I also was unsure how to handle an extended drain interval with my low mileage accumulation rate; if I assume even their basic PCMO can do 12k miles, that would take me 2 years to accumulate. Is it OK to leave it in that long, or should I just accept that I really don't need an extended drain oil and go for a Mobil 1 ESP 0W-30 or Valvoline Restore and Protect 5W-30? Is that engine going to dilute any oil to death before it gets to 10k+ miles?

Looking forward to everyone's thoughts.

 

[ctechbob]

According to Ford, the 2.3EB in the 2026 is still just GDI injected. You'll want to stick with 5k oil changes. I never had an issue with it on my Ranger with the 2.3, but plenty of people have had dilution issues. That makes 5k the sweet spot unless you're going to spend the extra money on oil analysis.

The 2.3 is a stout little engine, taken care of you should get lots of happy miles out of it. Gear driven oil pump and external belt driven waterpump put it at the top of my 'good EcoBoosts' list.

--Edit--

Conflicting information. One article says the MPC is in everything (And the MPC is dual injection), Ford says not quite on their spec sheet.

Either way. That 2.3L is doing some hard work. Give it good oil at 5k intervals.

 

[2.7ecoboostFordBronco]

I would just use ESP 0W-30 and change it at 5,000 miles, I say so because I would not be inclined to do extended drains in an ecoboost, with a cold climate especially. Even with multi point injection my 2.7’s will dilute up to 5% in winter when cold starts below 0F become routine. The 2.3L does have the benefit of a larger sump capacity to engine size ratio, but a quick search of 2.3L UOA on here I’ve yet to see an oil stay in grade and the few Polaris UOA I saw had “abnormal” dilution in the 4-5% range. Even saw a few that had taken Motorcraft 5W-30 down to the 6 cSt range. Conventional wisdom is that a higher starting viscosity with shorter intervals is best practice.

For HPL I might go with the Premium PCEO 0W-40 in anticipation of dilution but I’m not sure the cost/benefit is there on standard length change intervals. If you did decide to try long intervals I’d guess that oil would be as good as any for it. That said, I’m sure plenty of people run Motorcraft blend to 10,000+ and our highway shoulders aren’t exactly littered with broken down ecoboosts, so do as you will!

 

[billt460]

................My use case is roughly 6k miles per year with a 60/40 mix of city/highway............

I would just go with once a year oil and filter changes with Mobil 1 in the weight of your choice. Or if you're concerned about it being an Eco-Boost, you could go every 6 months. It's not really necessary, but it if gives you peace of mind, it's worth the extra half hour and $50 bucks.

 

[fantastic]

You could certainly use HPL. I'd get a used oil analysis to see how far you could run it.

 

[McRightclick]

According to Ford, the 2.3EB in the 2026 is still just GDI injected. You'll want to stick with 5k oil changes. I never had an issue with it on my Ranger with the 2.3, but plenty of people have had dilution issues. That makes 5k the sweet spot unless you're going to spend the extra money on oil analysis.

The 2.3 is a stout little engine, taken care of you should get lots of happy miles out of it. Gear driven oil pump and external belt driven waterpump put it at the top of my 'good EcoBoosts' list.

View attachment 333262

--Edit--

Conflicting information. One article says the MPC is in everything (And the MPC is dual injection), Ford says not quite on their spec sheet.

Either way. That 2.3L is doing some hard work. Give it good oil at 5k intervals.

All sources I can find seem to think the MPC is dual injection, unfortunately I haven't found a teardown of one on YouTube yet to be sure but from pictures I think I can see two fuel rails. Either way, I agree it's probably still going to be a pretty severe diluter so I'm guessing I'll just call it a day at 5k.

Now, just gotta figure out how I'm gonna get to that abysmal oil filter location...

 

[McRightclick]

I would just use ESP 0W-30 and change it at 5,000 miles, I say so because I would not be inclined to do extended drains in an ecoboost, with a cold climate especially. Even with multi point injection my 2.7’s will dilute up to 5% in winter when cold starts below 0F become routine. The 2.3L does have the benefit of a larger sump capacity to engine size ratio, but a quick search of 2.3L UOA on here I’ve yet to see an oil stay in grade and the few Polaris UOA I saw had “abnormal” dilution in the 4-5% range. Even saw a few that had taken Motorcraft 5W-30 down to the 6 cSt range. Conventional wisdom is that a higher starting viscosity with shorter intervals is best practice.

For HPL I might go with the Premium PCEO 0W-40 in anticipation of dilution but I’m not sure the cost/benefit is there on standard length change intervals. If you did decide to try long intervals I’d guess that oil would be as good as any for it. That said, I’m sure plenty of people run Motorcraft blend to 10,000+ and our highway shoulders aren’t exactly littered with broken down ecoboosts, so do as you will!

Right, as much as I would like to support HPL (didn't grow up too far from Manteno!) I'm not sure my use case can really justify the cost; I just can't make the most of the better oil.

Do you think it'd be worth it to immediately dump the factory fill and then run their break-in oil for a few hundred miles? I'm not sure if those are meant more for racing engines or something like that.

 

[billt460]

Fuel dilution + low viscosity oil + turbo = Disaster.

 

[ctechbob]

All sources I can find seem to think the MPC is dual injection, unfortunately I haven't found a teardown of one on YouTube yet to be sure but from pictures I think I can see two fuel rails. Either way, I agree it's probably still going to be a pretty severe diluter so I'm guessing I'll just call it a day at 5k.

Now, just gotta figure out how I'm gonna get to that abysmal oil filter location...

Should be exactly the same as it was on my Ranger. Just go in through the drivers side wheel well.

I actually swapped out the factory plastic whatever they're called...screw rivet retainer things, for some of these..

Made it a no-tools operation to flip down the inner fender liner. Some people use magnets, but I liked having it look almost factory.

 

[Astro_Guy]

Right, as much as I would like to support HPL (didn't grow up too far from Manteno!) I'm not sure my use case can really justify the cost; I just can't make the most of the better oil.

It's not a large cost in the grand scheme of things. Even if you settle on a 5k OCI the annual cost difference won't buy you dinner out for two.

 

[facility1]

AMSOIL Signature Series in the viscosity of your choosing.

 

[McRightclick]

It's not a large cost in the grand scheme of things. Even if you settle on a 5k OCI the annual cost difference won't buy you dinner out for two.

I'm not worried about the cost difference, it just seems like I'd kinda be wasting the better oils - if I have to dump whatever I put in at 5k for fuel dilution concerns I can't take advantage of their extended drain capabilities, right?

Obviously I will get used oil analysis done to verify the dilution severity, but in general these Ecoboost engines seem to dilute badly.

 

[Garman19]

All sources I can find seem to think the MPC is dual injection, unfortunately I haven't found a teardown of one on YouTube yet to be sure but from pictures I think I can see two fuel rails. Either way, I agree it's probably still going to be a pretty severe diluter so I'm guessing I'll just call it a day at 5k.

Now, just gotta figure out how I'm gonna get to that abysmal oil filter location...

Just changed my oil on my 2025 Ranger with 2.3 mpc. I go from the top down, while it is not ideal, it is do able. 4300 miles, second oil change, went with Mobil 1 ESP 0w-30, summers coming and I wanted something a little thicker.

 

[ctechbob]

Just changed my oil on my 2025 Ranger with 2.3 mpc. I go from the top down, while it is not ideal, it is do able. 4300 miles, second oil change, went with Mobil 1 ESP 0w-30, summers coming and I wanted something a little thicker.

You must have some long, skinny arms. I couldn't even reach mine from the top, let alone spin it.

 

[McRightclick]

Well, I placed my order today 2 door 7MT Badlands Sasquatch with the upgraded Fox dampers incoming!

I'll snag some ESP 0W-30...

 

[Whimsey]

We have a 2017 2.3 EcoBoost Explorer. It really hasn't been much of a fuel diluter. It is only DI. I've attached an UOA comparing Pennzoil Ultra Platinum 5W-30 to Mobil 1 ESP 5W-30. They were both run in comparable seasons. The Pennzoil Ultra Platinum was run about 1,000 miles longer.

 

[altaylar]

I guess the question is, how long do you plan to own this vehicle? If you are going to keep the vehicle for 5-10 years, 2 year drains would work just fine.

HPL is not the only quality extended drain interval oil, though certainly one of the best. If the price is a concern, Pennzoil Ultra Platinum can last a long time as well, especially if you start with a higher grade to begin with.

 

[Hohn]

If you don't have much of a dilution issue, I'd go Valvoline Restore and Protect 5w-30 on 5k OCIs and never look back.

IF you drive more and/or want longer OCIs, go HPL 5w-30 and 10k-15k OCIs based on UOA.

If you find dilution to be an issue, move up to 40 grade (or higher) to whatever is needed to assure sufficient viscosity at the end of your OCI. If it's a heavy diluter, you might need to go up to 50 grade to get a longer interval.

 

[McRightclick]

If you don't have much of a dilution issue, I'd go Valvoline Restore and Protect 5w-30 on 5k OCIs and never look back.

IF you drive more and/or want longer OCIs, go HPL 5w-30 and 10k-15k OCIs based on UOA.

If you find dilution to be an issue, move up to 40 grade (or higher) to whatever is needed to assure sufficient viscosity at the end of your OCI. If it's a heavy diluter, you might need to go up to 50 grade to get a longer interval.

Honestly, for all the negative effects on oils that I've read fuel dilution causes outside of viscosity loss I think I'd rather just play it safe and run short drain intervals. It's not that much time and money, and probably better for the engine overall.

 

[tired]

If you don't have much of a dilution issue, I'd go Valvoline Restore and Protect 5w-30 on 5k OCIs and never look back.

IF you drive more and/or want longer OCIs, go HPL 5w-30 and 10k-15k OCIs based on UOA.

If you find dilution to be an issue, move up to 40 grade (or higher) to whatever is needed to assure sufficient viscosity at the end of your OCI. If it's a heavy diluter, you might need to go up to 50 grade to get a longer interval.

99% of "which oil should I run" should have this post and then thread locked.