New 0W-20 Synthetic Motor Oil from Mazda

Discussion in 'In the News' started by xcel, Oct 10, 2012.

  1. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    [​IMG]Just look at those kinematic viscosity numbers!

    [fimg=left][/fimg]Wayne Gerdes - CleanMPG - Oct. 10, 2012

    Idemitsu’s “Genuine Mazda 0W-20 GF-5 with Moly - Synthetic Engine Oil” – ILSAC GF-5 certified and sold in 1 qt. containers for $7.95 at a Mazda dealership near you.

    A new motor oil is now available that will make you think twice about picking up the 5 qt. container of Mobil1 Advanced Fuel Economy 0W-20 (one of my favorites), possibly 5 single quarts of Pennzoil Platinum Full Synthetic 0W-20 or even having a few gallons of Amsoil Signature Series 0W-20 delivered to your door.

    The new kid on the block was created specifically to reduce friction while providing the utmost protection for Mazda’s SKYACTIV-G gasoline engines available in both the Mazda3 and CX-5. The hyper efficient synthetic oil is engineered to improve Mazda SKYACTIV engine equipped Mazda’s fuel economy and deliver quick starts with fast lubrication for outstanding engine protection even in the coldest of conditions. This new engine oil also meets or exceeds the latest and very tough ILSAC GF-5 requirements.

    Introducing the new “Genuine Mazda 0W-20 GF-5 with Moly” synthetic motor oil from Idemitsu. The advanced formulation is the result of years of research to develop a motor oil that provides the protection a modern day engine demands while providing the efficiency we all need.

    Motor Oil 101

    The main function of motor engine oils is to lubricate the cars internal engine parts so they run smoothly and are protected from wear and tear, for better efficiency and performance.

    In the case of Idemitsu’s Mazda SAE 0W-20 GF-5 low viscosity synthetic formula, it provides outstanding quick cold temperature starting and fast protection in order to extend engine life. As a by-product, the utmost fuel economy is achieved from the initial turn of the key to heading down the road no matter what temperature or condition.

    How does synthetic oil maximize fuel economy?

    Directly out of the Mobil1 synthetic playbook, there are 4 key areas in an engine where large energy losses occur due to metal on metal contact and the resultant friction as described in the following:
    1. The Valve Train - Energy loss occurs in the camshaft bearings and also in the contact area between the valve and roller lifter.

      During warm-up, Mazda SAE 0W-20 GF-5 low viscosity synthetic formula flows faster because of its ultra low kinemetic viscosity at low temperature rating helps minimize initial start metal on metal contact friction and wear.

    2. The Piston and Cylinder - Energy is lost at the piston liner interface during the combustion cycle and especially before and after the midstroke when the crank angle is at its most severe.

      Mazda SAE 0W-20 GF-5 low viscosity synthetic formula works to reduce friction at the piston compression rings and skirts sliding up against the cylinder walls.

    3. The Oil Pump - In the oil pump, energy loss occurs due to rotational energy consumed by pumping heavier viscosity oils as engine temperatures increase to steady state operating temperatures.

      During the warm up phase in particular, the Mazda SAE 0W-20 GF-5 low viscosity synthetic formula’s lower kinematic viscosity flows more easily through the oil pump, requiring less energy to pump the oil to critical engine parts when they need it most and even after reaching normal operating temperature to improve engine efficiency and fuel economy even further.

    4. The Crankshaft - The main bearings and connecting rod bearings are two areas where friction abounds. Mazda SAE 0W-20 GF-5 low viscosity synthetic formula oil ensures low traction (internal fluid friction) to further contribute to improved engine efficiency.
    The 0W-20 Full Synthetic Comparison – Kinematic Viscosity Ratings

    Product Brand NameViscosityKinematic Viscosity at 40 degrees C (cSt)Kinematic Viscosity at 100 degrees C (cSt)
    Mazda GF-5 with Moly0W-2035.08.3
    Pennzoil Platinum Full Synthetic0W-2042.88.4
    Mobil1 Advanced Fuel Economy0W-2044.88.7
    Amsoil Signature Series0W-2047.38.7

    Lower is better.​

    Mazda SAE 0W-20 GF-5 with Moly synthetic motor oil (MAZDA PART Number: 0000-G5-0W20-MQ) is the motor oil Mazda recommends for use in all of its 2.0L SKYACTIV-G engines.

    Always consult your owner's manual for the correct viscosity choice and specification grade of oil required. And remember that our manuals viscosity recommendations usually allow a range of viscosities based on local temperatures expected between coil changes.

    The synthetic oil maker, Idemitsu, is a large Japanese conglomerate involved in petroleum refining and the manufacture of oil, petrochemical and agricultural chemical based products. They are an employer of more than 8,000 with revenues exceeding $55 Billion USD in 2011.

    A large thank you goes out to Dave Coleman of the Mazda Tech Group for providing us some of the details on this fantastic new motor oil! And I think you know what we will be using on our next fuel economy record drive ;)
    Last edited: Oct 11, 2012
  2. diamondlarry

    diamondlarry Super MPG Man/god :D

    Hmm, me thinks I shall visit a local Mazda dealer soon.;)
  3. herm

    herm Well-Known Member

    Larry, you keep accurate mileage records?.. it will be hard to tell the difference vs. $5.20 a quart Mobil 1 Advanced.
  4. diamondlarry

    diamondlarry Super MPG Man/god :D

    True, however if it can make the Insight's engine last that much longer, it could be worth it.
  5. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Just because the difference is small and hard to measure doesn't mean it's not there. If manufacturers are spec'ing lighter oil for mpg reasons, it should work for the rest of us as well.
  6. Mendel Leisk

    Mendel Leisk 2010 Prius (CAN Touring) Staff Member

    Toyota and Honda also sell house brand 0W20, at similar prices. Would be interesting to see how they compare for viscosity.

    Also, wonder how the Mazda oil would compare to regular 0W20 with moly additive.
  7. RedylC94

    RedylC94 Well-Known Member

    What's with the 40°C viscosities? Why do they matter? If they're going to claim the stuff will "deliver quick starts with fast lubrication for outstanding engine protection even in the coldest of conditions," it would be far more relevant to list the 0°F (or lower, but 0° is conventional) viscosity.

    Also, there's no "metal on metal contact and the resultant friction" in healthy plain bearings at operating speeds (i.e., once full hydrodynamic film lubrication is established). There's still energy consumed in the bearings, though, shearing and pumping oil.
  8. herm

    herm Well-Known Member

    A snake oil additive with PFTE would not hurt either :)
  9. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi RedylC94:

    There is always some metal to metal contact or there would be no wear or fragments "until the oil film" is formed. The Alloy surfaces are lot harder than the shear forces of the lubricant and probably the products of combustion impurities that are suspended in it. Once the hydrodynamic film initializes, sure but that can take a second or more. This is an area where synthetics are supposed to do a much better job as well. Not only do the more even size molecular chains maintain that film better but for whatever reason, it possibly clings to the cold surfaces for longer period than regular oil from my understanding. Not sure of the mechanism of that second part but hopefully somebody will supply a link.

  10. RedylC94

    RedylC94 Well-Known Member

    Hi xcel,

    Thanks. My point, at least in part, was that it doesn't make sense for Mazda PR to claim the oil prevents "large energy [hence fuel, by implication] losses occur due to metal on metal contact" in bearings, when the only metal-to-metal contact is so brief with any reasonable oil. That's not to say it doesn't help fuel consumption, or reduce bearing wear during those moments of "metal on metal contact," compared to some other oil.

    So far, no indications of bearing wear in my Mazda's engine, after 586K miles, roughly 1.7 billion revolutions, and innumerable cold starts.
  11. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi RedylC94:

    Actually this was not a Mazda PR and Mazda made no claims whatsoever other than supplying me with the bottle label and manufacturer that I had asked about some 3-months ago.

    I had to dig all over the globe to come up with the details on this new synthetic oil including my comment "metal on metal" so anything posted above is completely my own. I was referring to the cold starts when I made that reference so I should probably clarify it with an edit.

    I added "initial start" just after the "cold temperature" reference and just prior to "metal on metal" one.


  12. phoebeisis

    phoebeisis Well-Known Member

    I have some vague memory of Moly acting as some sort of sacrificial metal-
    forming tiny welds between metal surfaces-then tearing away
    My memory seems to "say" it makes the contact "weld" instead of steel to steel contact?

    As I write this- it seems unlikely- but that is my memory?
    In any case-seems like it is there for when the oil film fails or at start up when it-the actual oil molecules-haven't filmed up yet.
    So maybe the moly is to cover any sins from the very thin oil.
    I thought the moly-and higher zinc levels too "poisoned the cat con" ?

    PS I also have some vague memory that suggest that part of syn oils advantage is it doesn't need as high a concentration of viscosity modifying molecules as "regular oil" so it has a higher concentration of pure lubricating molecules-and therefore lubricates better(not sure why a vis modifying molecule wouldn't lube as well- but I'm guessing it doesn't)
    Last edited: Oct 11, 2012
  13. wick1ert

    wick1ert Well-Known Member

    Interestingly, the 0W-20 OE by Amsoil has different viscosity numbers than the SS one. I switched to the OE variety this year on my oil change, mostly because it's less expensive and is rated to allow for my oil change intervals (which are 5k due to almost all trips under 5 miles). At 6.10/qt (unless you become a preferred customer, then it's around 20% less), and the ratings of 8.3 @ 100C & 44.2 @ 40C it sorta falls in the middle of the ones you listed. I wonder what the XL ratings are for the Amsoil.
  14. tribosessive

    tribosessive Well-Known Member

    I currently use Eneos Sustina 0W20 motor oil. It would be very interesting to find out what base oil and additives Idemitsu is using in making the product that is the subject of this thread. I will definitely be cruising over to my local Mazda dealership soon.
  15. RedylC94

    RedylC94 Well-Known Member

    That's correct; it has inherently better viscosity index than typical "regular oil" does without VI improvers.

    Oil viscosity varies significantly with pressure (which is a lot higher in the oil film in a loaded bearing than the pressure created by the oil pump), as well as with temperature.
  16. Bruce

    Bruce cheapskate

    I just picked up 5 qts each of Mobil1 0-30 and Pennzoil 0-20 to mix in oil changes for $25/jug...I have been questioning the wisdom of continuing with synthetics at all given it's burning a quart every 3000 miles, but I suppose they may help reduce wear with my frequent startups.

    I'd need a 2-3% increase in FE for the Mazda oil to break even with may offer a tiny increase in FE, but I doubt it'd be that much.
  17. rhwinger

    rhwinger Well-Known Member

    Well, I'm giving serious consideration to this on the next oil change.

    A couple years ago Honda was supposed to come out with a new high performance oil. Has anyone heard anything about this latelyl?


  18. herm

    herm Well-Known Member

    Extend the oil change interval but change the filter occasionally since you are refreshing the additive package every 3000 miles.
  19. uRabbit

    uRabbit Well-Known Member

    Hmm. Changed to AmSoil 100% Synthetic 5w20 when we did our first oil change in this car over 8,000 miles ago. Wondering if it will perform to its 20,000 mile mark, especially considering we only put about 250 miles on per month.

    This Mazda oil has me thinking too. Would love to switch to 0w20 if it is not going to allow the engine to eat itself
  20. msirach

    msirach Well-Known Member

    I have been using the Amsoil extended change oil since 2004 and haven't had any issues. They recommend 20,000 miles OR 12 months. Moisture is definitely a problem with driving as little as you do.

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