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Before you go does the factory oil fill include XL17?

Makes me wonder if your counterweight is about to fail and should/could be repaired or replaced. Any thought about having Ford dealer tech look at. I have my doubts that it’s a common problem and therefore dealer techs would not know. Might be worth contacting Callimer as they probably have way...

I’ve been on 10.1.0 since mid November. Is 10.1.1 a point update to or an either/or upgrade for 10.1.0? I have a Job 1 (November 2023) GT.

Looking good.

Promising. It’s not consuming massive amounts of oil. Maybe now just watch it over time to see if it’s consuming a more reasonable amount. Mine went through somewhere around a half quart in its first 4k.

Pre-filling may improve the amount of time it takes to build oil pressure. So without a pre-fill, there could be a couple second gap to build oil pressure. Whether or not it helps with BBQ Tick, didn't with mine. I always (for the past 45 years doing oil changes) pre-fill and used 10 qrts (not...

Me too, but I wish I would have done one right away and also have them measure soot to see if it may have added suspended carbon above a virgin oil sample. Measuring soot (suspended carbon) is not a common test for gasoline powered vehicles, it’s more available for diesel engines...

Sorry I made an error in my response. Meant to state “it’s not ONLY what we get from the factory…”. I forgot the “only”. But on that topic, I am a firm believer that we not only get from the factory the recommended 5w-30 semi synth SN+ Motorcraft, but with an additive/modifier to suppress the...

Mostly correct, the older SN (not SN+) was GF-5 whereas the newer SN+ is ILSAC GF-6. Also, it’s not what we get from the factory, but also what we’re supposed to get from anyone servicing the vehicle. My point was the OP only stated viscosity. So I wanted to make its not just viscosity but API...

This brings up another issue besides viscosity, the -A oils in the screen capture above are SN oils. The 2024 Mustangs require SN Plus oils to reduce the possibility of Low Speed Pre Ignition “LSPI”. This is probably more common in Ecoboost engines than N/A coyotes. The one approved variance on...

Yep. Watch over the next 400 miles.

Looks good, just keep monitoring for the next few days and few hundred miles to be sure. I think you’re good, time will tell. When mine was new I checked every week then slowed down. It got low by the first 3k, but still above the lower mark.

My concern is it’s also made for the ecoboost engines and thus has provisions for that engine that may not apply as much to the stock (unboosted) coyotes. It’s an SN Plus/SP rated oil that reduces the chance of “LSPI”. SN Plus and SP oils also don’t have a 5w-50 variant. What’s interesting to...

It’s hard to tell my level, but I recently did a full 10qt change and my oil level is mid point between the high and low marks cold. So yours actually seems reasonable given the 9.5 qt spec.

Yep that’s exactly what should be assessed first and foremost - the lower than expected level. If there’s no excessive consumption after a week or so, then if you want to feel safer and get a better safety margin, it wouldn’t hurt to add half a qt of Motorcraft SN Plus 5w-30 semi synth, which...

I believe your first priority is to see if your engine is excessively consuming oil. That is a testable theory. The quickest way to know is to take what you currently have (400 miles, dipstick 1/3 way above lower mark) and replicate your driving conditions over the next week. Take everything...

From the internet (couldn’t have said it better myself): Hot oil checks reflect real-time operating conditions but may be less accurate due to oil expansion. Cold oil checks provide more consistent and safer readings but may not reflect the oil’s behavior during operation. The best method...

Not here to guess, it’s better to know since you’re either perfectly within spec (9.5 qt factory fill) or are in a bad spot (10 qt factory fill and burned half a quart in under 500 miles). This is becoming like Schrodingers cat. I’m advocating that you check it hot when you get home at night and...

Going off of memory you have about 400 miles and drive 40 or 80 miles a day. Since you didn’t set the baseline when you got the car, it’s safer to assume it was full top from the factory and you lost half a quart in 5 to 10 days. That’s alarming if true. Therefore test it everyday for the next 5...

Mine is a late 2023 as well, 11/29 to be exact. I put waaay too much research in to this. Even compared the ones from Dorman at a local auto parts store and Hilman from Lowe’s. Nothing is close except for the Ford ones and the matching “Chrysler” ones that I have in my response above. I guess...