The oil consumption isnāt that bad. My 2.5L NA uses about 0.3 ~ 0.7 quart of oil each time I change the oil (3,000 ~ 7,000-mile interval) with Mazda moly 0W-20.my cars lose too much oil to go 10K miles between oil changes.
Perhaps the sweet spot is at 7,500 miles or 1 year. That's roughly what I've been doing the past 10 years.Let me preface this with, āIām 73 years old.ā Now, every since I was knee-high to a grasshopper, it was drilled into my head, ā3,000 miles 3 months, whichever comes first.ā Ah, those were the days. No synthetic motor oils. And when they broke onto the motoring scene, I still wasted good money on that old 3,000/3mo belief. Did them myself, so not too badly expensive.
But today? With folks throwing around 9,000 mile intervals? Iām just now getting acclimated to going 5,000/6 months between changes. The entire concept is mind boggling.
Changing the viscosity to 5w-30 may not have real measurable effect on the oil consumption on Skyactiv N/A engines. Your personal Mazda if you pull the throttle body and take a flashlight and look inside you will most likely find that your oil consumption is from the PCV port and puddles around the bottom of the lower intake chamber. Project Engineers at Mazda have been working a solution to reduce some of that effect from the PCV system for future engines.
Yes, I believe thisās true as we can see thereās so much oil found in the intake manifold when felixd removed it from his CX-5 with only 28,9xx kms / 17,957 miles to clean the intake valves.
Yes, I watched the video, but it does not really show the extent of intake puddling. I also went hmmmm the condition of the engine and also that was an extreme amount of just oil carbon and gunk at only 18k miles... that's just bad.
What oil brand are you using causing the level to go low?
You think as I do. I change all my oils at 3k miles except the bikes. They get it changed if I do a hard weekend mountain ride in the twisties. Oil and filters are inexpensive and give lots of peace of mind. I also use oil data temperature charts (old school thinking) to decide what viscosity to use. So it is not always 0w-20.
That is always a debate on all the forums. Really the oil leaves a film that remains for months maybe years on critical bearing. When the engine starts the oil pump pulls from the sump and can fill the complete engine in less than 2-5 seconds reaching the specified oil pressure. So, IMHO to fill the oil filter before installing it is just another thing that might end a mess on your garage floor if it slips out of your hand. HA!
I usually put a tad bit of oil into it and swish it around. I then handle it like SWAT trying to disarm something lol.
Well said. After reading this I recalled my son telling me that his oil change frequency is 10,000 on his 2012 Tundra. I never conceived I would see the day of 10k oil changes. Butā¦.might give her a go. LOL
Would a ācatch canā remedy some of this?
Been using OEM Mazda Moly oil since we bought the car in 2016.
The Cork Sport Catch Can seems to be designed very well and the location is at the sump level so you also get gravity working for you. But as I said I have been lazy and not installed it on the PCV side of the system so I can only go by what I feel is a workable quality design in a catch can.
Are you saying you put in Mazda specified 4.8 quarts for oil change on your 2014 CX-5 2.5L? If thatās the case, no wonder you may need to add some oil between oil changes, as you actually need ~5.25 quarts to make the oil level reaching the Full mark of the dipstick for the oil change.
I have you beat by a few years on changing my own oil. Even as a teen one of my very first jobs Shell gas station they were not a coinvent store way, was working as a pump jokey "ding, ding" had to change customers oils between wiping windshields and checking air pressure in their tires.
I think it was a 2.0L in 2014
I can attest from my personal experience, othe than using thicker oil (and āSTPā oil treatment in old days), diffrtent brand of oil with same viscosity sometimes does make difference on oil consumption. I believe it could have something to do with different additives used by different manufactures.
Same here. I have never pre-filled the oil filter on all cars Iāve owned where the oil filter is mounted vertically (GMćFordćAMC)ć horizontally (Honda)ćwith some angle (VW)ćor using an environmental-friendly paper cartridge (BMW).
