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  1. M

    Yokohama vs Michelin

    Exactly...... Differences in tire circumference and therefore tire speed will destroy the center and rear diffs in short order. Subaru's are the most sensitive with just a 2/32" difference being enough to cause mechanical failures but that is a true symmetrical AWD system. Also, it's bad enough...
  2. M

    Yokohama vs Michelin

    Continental True Contacts are my favorites. Continental True Contacts are the best IMO for our CX5. Great wet/dry performance, very even wearing, long life and very quiet. P225/55R19. Just bought 4 new ones yesterday, but no fault of the tires. Got a puncture right on the edge and was not...
  3. M

    What did you pay for your CX-5?

    Invoice is not what a dealer pays for a car. Ignoring hold back, etc, manufacturer's have been pushing more of the vehicle cost into the MSRP since the late 90s and the ability of people to find invoice prices over the internet. Practically all vehicles have a current invoice that's about 3-5%...
  4. M

    2.5L Oil level fluctuation

    Gas will make any weight oil go into solution. It's the old like dissolves like from chemistry. Polar likes polar and hydrocarbons, like gas and oil are non-polar, so they dissolve well into each other. I've had and built many high hp, high boost, petrol DI engines, and while they had some fuel...
  5. M

    2nd trans acting up

    The OCV is part # PE0114420A and I believe dealer cost for just the valve is $280 or so. Add the other parts and labor and I'd guesstimate around $600-$700, plus probably a bunch of scraped off silicone in your engine, broken clips, etc.
  6. M

    2nd trans acting up

    They make a tool for it, but I just cut a piece of polyethylene out of an old windshield washer bottle about 2" X 3" long, start the belt on the crank pulley and then place the plastic between the belt and pulley on the tension side of the water pump and rotate the crank CW with a long ratchet...
  7. M

    2nd trans acting up

    I cleaned the top of the valve at the connector interface with brake clean and then put a healthy bead of permatex grey silicone around it. It worked well for about 10k, then started leaking through, so I did the repair. All in I paid about $250 or so for parts. Other than my first car, a new 80...
  8. M

    2nd trans acting up

    That leak is caused by the pos early model of the OCV for the VVT. This is specifically addressed in a TSB. It is caused by a poorly engineered plastic to metal seal at the top where the electrical connector is. I just replaced my wife's with a new OCV, valve cover gasket and OCV to valve cover...
  9. M

    Snow with my 2016 CX-9 issues

    Yeah, I guess me seeing it in person and talking directly with my parts and service guy isn't as credible as you finding it on the Internet. Go figure!?
  10. M

    Snow with my 2016 CX-9 issues

    Just an FYI. I was at my local Mazda dealer, bs'ing with my parts guy after picking up a few things and he pointed to 3 2017 xfer cases on the shelf he was replacing and already had done 6 or 7 already. They overheated, puked all the oil out the breather and fried. The CX-5 xfer case is fine for...
  11. M

    48 month, 40,000 mile service

    My wife's 2015 GT AWD just turned over 66,000 miles. I did new f&r pads at about 50k, rear diff and xfer at about 30k w/ Redline full synthetics, OE cabin filters at least every 6 months, 6 sets of front and rear Mazda value line wiper blades, OE engine air filters 3 times (just did a A/T...
  12. M

    2.5L Oil level fluctuation

    It's based on stochastic analyses Since it's based on stochastic analyses, which is the prediction of a completely random event, which having done many of these is not a trivial task given the large number of variables, HIL (Human In the Loop), etc, we have no way of knowing what parameters...
  13. M

    2.5L Oil level fluctuation

    That's good reading. Thanks for the info. However, it appears that the LSPI, GF-6 oils, papers, etc are geared more toward forced induction applications, where I'd expect and not NA applications like non-diesel CX-5's. Not saying it doesn't apply, just geared more toward higher combustion...
  14. M

    2.5L Oil level fluctuation

    Interesting, I'll have to check in to that. Any pre-ignition should be and from my tuning experience has been worse in hot conditions, when air is less dense, hotter, etc and knock is more prevalent. Engines love cool, dense air, especially turbos. I'm a little suspicious about the no knock...
  15. M

    2.5L Oil level fluctuation

    Hi garycar, I'll keep you updated. I had the PCM & TCM flashed to the latest versions. Haven't driven it much since then, probably about three hundred or so shortish, cold miles by the wife, but the level has seemed to stabilize just below the full mark. I'll have to check it again and again...
  16. M

    2.5L Oil level fluctuation

    Any leak or problem in the evap system would set a dtc and check engine light. The system monitors this entire system in values of milli bar, so your theory is not valid for my cx5. Also I never said it was "making oil", just increased oil level. Also, the fuel blowby does impact fuel economy...
  17. M

    2.5L Oil level fluctuation

    Oil level update #1 So I confirmed that our 2015 CX5 has been over fueling since day one. How do I know this? Well, since day one when we bought it, my wife was driving 80-100 miles/day until just recently, which put almost 65,000 miles on it to date, with no oil level problems. Over the past...
  18. M

    2.5L Oil level fluctuation

    Don't tell me I don't know what I'm talking about. I worked and designed oil reclamation equipment to extract and fractionate waste oil back into virgin base oils using wfe's, high pressure SCO2 and other technologies. We had a lab 10x more sophisticated than Blackstone as we had to certify...
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