First CX-5 oil drain

Status
Not open for further replies.

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg
Contributor
:
Plano, Texas, USA
What is there to be confused about? Is 5.1 quarts not "about 5 quarts" as I stated, and as you highlighted in bold? The only confusion I'm aware of is your mention of the 2.5 NA, since both the OP and Ladd have 2.5T-equipped CX-5s, and the discussion has been regarding only that engine (until you brought up the 2.5 NA in this post).
Really? See post #20、#24 and #25 above by Mazdiod2、cz5gt and Conrad 16.5 and all of them have 2.5L instead of 2.5T and use 5 quarts (5 liters / 5.28 quarts for cz5gt) of oil for oil change.

As I have mentioned in my responses to you in particular, about filling the oil - it's personal preference, and the exact amount required depends on a lot of other factors (drain time, prefilling the oil filter, oil level preference, etc.). To account for all of those variances, an approximation of about 5 quarts is logical, with a suggestion to keep an extra quart of oil on hand to account for oil level preference.
We can use whatever the quantity you feel comfortable for the oil change, but we should be consistent on the subject. Double standards are not my believe of telling people who need such information. And I especially dislike the Mazda way trying too hard to be different from everybody else. How many times we’ve seen people asking questions on oil level when they use the specified oil quantity and found the oil level is way lower than the Full / Max mark?

0.37 quart specified on rear differential, but 0.75 quart in reality? OTOH 0.45 quart is the correct quantity specified for front transfer case?

Don’t even bring up the range of torque value given only by Mazda in every manual ⋯
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
We can use whatever the quantity you feel comfortable for the oil change, but we should be consistent on the subject. Double standards are not my believe of telling people who need such information. And I especially dislike the Mazda way trying too hard to be different from everybody else. How many times we’ve seen people asking questions on oil level when they use the specified oil quantity and found the oil level is way lower than the Full / Max mark?

Those who mentioned putting in 5 quarts did not mention anything else regarding other variables. For all you know, 5 quarts may fill to the MAX mark on the dipstick due to an oil consumption issue. Unless oil dilution is an issue, .2 quarts over is not worth fussing over IMO.

If you yearn for consistency, then all variables need to be the same. It's unrealistic to expect everyone to adhere to variables that have not been specified. Coupled with the range considered OK in the manual (shown below), an approximation is actually the most consistent solution as it accounts for the widest range of scenarios.

index.php
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
Don’t even bring up the range of torque value given only by Mazda in every manual ⋯

I already brought it up in a previous post because I knew you'd comment on it.

You can say the same about torque specs, to a degree. Stating a range instead of a specific value accounts for the variance in accuracy that some consumer-level torque wrenches may have, as well as any variances that may occur from a torque wrench that may not be calibrated perfectly. It would make sense to assign a hard value if the instructions stated to use a torque wrench that has been verified to be correctly calibrated and accurate to the in/lb, but they do not.
 
:
2019 CX-5 Signature
But 5 quarts is less than Mazda’s oil change spec for the 2.5T:
You're talking 3oz here. How much is left behind that didn't drain out?

I've read the dipstick several times after my initial DIY oil change a couple years ago. Just after filling and running the engine up to temp and waiting 5 minutes, the level was just below the max mark. Reading it again a week later, it was just above the mark. This is not uncommon on DI engines. As long as I don't drop below the halfway mark, or go way above the max, I'm fine with my 5qt regimen.
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
We are straying off topic now. My apologies as I contributed to the tangent.

Let's get back on track regarding @erhayes' observation about the oil drain plug washer/gasket.
 
:
Pueblo county CO
:
CX-5 Sport 16.5 6M
It's possible not all of the oil drains out when you do an oil change.

I just change mine while it's flat on the ground--no ramps.

I save the 5qt jug afterwards. A week later I can look in it and there is always some oil left. Usually I just pour that in.
 
:
2018 CX-5 Sport
Ladd check your oil level to see what the dealer filled it too. I checked my car the day I got it and it was at the full mark, and I always put 5 quarts + 425CC to get it just about to the full mark. 473CC is half a quart, the difference between 473 and 425 is only 1.6 ounces, I would probably be good at 5.5 quarts. Mine is a 2.5 na.
 
:
2017 CX-5 GS AWD
Ladd check your oil level to see what the dealer filled it too. I checked my car the day I got it and it was at the full mark, and I always put 5 quarts + 425CC to get it just about to the full mark. 473CC is half a quart, the difference between 473 and 425 is only 1.6 ounces, I would probably be good at 5.5 quarts. Mine is a 2.5 na.
5.5qt is what I always use in all my 2.5 NA engines.
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
It seems this thread has run its course. Thanks for the heads up @erhayes.

Thread closed.
 
Status
Not open for further replies.

Latest posts