2.5T - got low oil level at about 4200 miles. Restarted, it stayed off for about 3 miles and came back on. Drove for another 30 or so miles with it on, shut down for 30 min, went on with my business. Came back, started, no light since then.

Edit: one and it time it happened was during the hottest day of the year so far

 

I had mine do turn on the low oil warning as well but it was gone before I got home. Checked the oil level the next day while the engine was cold and the oil was about 1/3 of the way above the minimum dot and maximum dot. When I checked the warning in the Mazda app later, the description of the warning recommends to add a quart of oil. I didn't actually do anything as it wasn't necessary, but will keep my eye on it. Only difference is I'm at 40k miles.

 

Was it really hot as well? Maybe oil gets thinned out bit more than usual when it's super not and sensor just freaks out.

 

I think it was somewhere around 80°F. It happened late at night and it wasn't particularly hot or humid. I had the AC off and the windows down. I was going roughly 40mph and over half the 10 mile the drive was in two cylinder mode. Mid 40 mpgs, two cylinder for most of the drive aside from some small hills, and all green lights with no traffic.

 

I’m running into this problem as well. I recently changed my oil and put synthetic in it. The cause of my light was due to the wrong type of oil?! The dealer told me to run conventional.

I have a ‘21 2.5 turbo

 

Your engine is not designed for Conventional Oil.

 

I'm having a hard time believing what this dealer claims.
On my almost new M3T, I will be performing my first oil change soon, and will be using Mobil 1, 5W-30, and will be monitoring this closely.

 

What filter did you use? I used a Mobil 1 oil filter and they claim that it did not have enough pressure.

 

Had the same problem with my 2021 3T AWD. Warning comes on, check oil and it was down about 3/4 qt. Put oil in and no further problem. Taking car in at 4500 mi. for first oil change. I was religiously checking the oil every 500 mi. and everything was fine. Don't know what caused the drop in the last 500 mi. I do on occasion like to get into the turbo but that is what that car is all about. I treat my '14 Ford Fiesta ST even more aggressively and no oil problem with it after 6000 mi change intervals and 52,000 mi.

 

Sounds to me like a sensor-being-too-sensitive to me. Synthetic oil and 3/4 quart low are certainly no reasons for a warning light to activate. The factory specs using synthetic oil, and 3/4 quart low is not considered out of specs either.

 

I just had mine show the low oil message. I'm at 5600 miles and still on the original oil. It was near the low side of the dipstick on a fully warmed engine. I did add some oil out of caution. I'll be keeping an eye on this issue.

 

In many cars the p250 code can refer to not only oil level but pressure too. The problem may be not oil level related but low oil pressure related. Wouldn't be the first time that a Skyactiv engine had oil pressure problems.

 

2020 Mazda 3 Hatch 2.5 6MT

8/18/2021:
Car came up with low engine oil level light and notification on my way home. Was coming up to 5,000 mile interval for oil change. Stick was showing past the min. line, was 1 quart low. Local dealer said it's not uncommon, dealer uses 0w20 conventional oil, I ask if I can use 5w30 as recommended for the 2.5T skyactiv G motors. They responded that it would void my warranty to use that oil, I call bully. I got my oil change done while at the dealer, no loss of oil a week later and 150 miles later. Took it for a long drive no ticks or knocks, seems to be okay but faint oil smell after first 20 miles they may have spilled oil on valve cover during oil change.

See attached image, car is very low miles.

 

2020 Mazda 3 Hatch 2.5 6MT

8/18/2021:
Car came up with low engine oil level light and notification on my way home. Was coming up to 5,000 mile interval for oil change. Stick was showing past the min. line, was 1 quart low. Local dealer said it's not uncommon, dealer uses 0w20 conventional oil, I ask if I can use 5w30 as recommended for the 2.5T skyactiv G motors. They responded that it would void my warranty to use that oil, I call bully. I got my oil change done while at the dealer, no loss of oil a week later and 150 miles later. Took it for a long drive no ticks or knocks, seems to be okay but faint oil smell after first 20 miles they may have spilled oil on valve cover during oil change.

See attached image, car is very low miles.

This makes no sense. The dealer told you 5W30 would void the warranty? That's a major red flag... 0W20 is not the correct oil type for the 2.5T.

 

 

Hopefully they get it figured out and fixed. Esp with 22 coming out.

 

Waw! that looks to be a costly repair for Mazda when they will release the fix.
It's either going to be a repair to fix the valve stems or new head completely.

 

Well, I'm happy to see the issue is acknowledged and that a real fix will be coming.

 

Wow. That does not sound good and will require some major work.

 

Any updates on a fix? Mine drinks a quart every 3 months

 

Aside from the possibly faulty parts, the sensor itself is also quite sensitive.

Car reported low oil(no check engine light though) after changing the oil on Saturday, dipstick reading was a smidge below mid point.

 

Mazda looking for root causes. This could take awhile.

 

On a 2500 mile road trip and got the low oil warning on the dash. First time I've ever had an issue like this, made the same trip in an Altima no issues. Topped up with 5W-30, hopefully Mazda fixes this for us soon! 2021 3 Hatchback Turbo AWD

 

I have a 2020 Mazda 3 hatchback premium 6spd. The check oil light went on; popped the hood & saw oil was low on dipstick. Added almost a qt. Light stayed off. Today, I brought it in for 15k maintenance at the dealership where I purchased it. It currently has 18,700k miles on it. They claimed the low oil was not uncommon. That at 5k the light may come on & require added oil; may be due to lots of miles driven between oil changes; also because the sensor is “very sensitive.” I’d expect this with an older model with more miles, but not with my ‘20, under 20k. Might contact another dealership for their opinion.

 

I asked for an update on this issue Friday while getting a scheduled oil change. The service manager said they do not have enough inventory to just swap out the entire head, and that techs will have to replace the valve stem seals on affected models. He also stated that due to the complexity of the job (~6 hours), Mazda would only be allowing their higher tier techs do the work (Master level I believe).