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Maintenance & Repair Synthetic motor oil
8536 messages, Last post on Nov 21, 2009 at 9:34 AM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
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Replying to: wjose (Dec 16, 2007 1:56 am) As a fast answer, I would use Mobil One 0w40 and oem, Mann or Mahle oil filters. https://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_0W-40.aspx You might also review the technical data updates for the latest recommendations for oil specifications. Rest assured however the Mobil One0w40 meets and exceeds the ..."VW 502.00/505.00/503.01"...specifications in force at the time. The latest specifications are the VW 507.... which (selectively) are backwards compatible. |
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Replying to: wjose (Dec 16, 2007 1:56 am) |
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Replying to: ruking1 (Nov 13, 2007 8:26 am)  I have made the switch to a 0W-20 Group IV product for my 5W-20 spec 07 Sonata. Its only been about 600 miles and 2 tanks of gas but I have noticed between a .5 and 1 mpg gain but its too early to credit the oil for a gain yet. After about 5,000 miles I will have a good dataset to say if the switch from a dino 5W-20 to a Group IV 0W-20 will pay off for me with better economy along with the longer OCI to truely cover the cost increase. As for the Amsoil zelots the true gains in using the product is the longer OCI the oil is built to support, if you stay with under 5,000 or even 7,500 mile OCI's then the extra cost does not justify its use. If you can run the 25,000 miles for the ASL or even the 35,000 miles of the SSO oils then yes I would say Amsoil "outperforms" the other oils
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Replying to: robert1955 (Dec 21, 2007 10:41 am) http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1035939#- Post1035939 |
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Replying to: robert1955 (Dec 21, 2007 10:41 am) It is pushing 60,000 miles at the so called elevated mpg. It was my intention to run the full OEM recommended OCI interval (10,000 miles) as per Honda recommendation, AND to switch and STAY with Mobil One 0w20 to 5w20 (group IV). So in that sense, it was NOT/never an A/B experiment. However, there is NO doubt in my mind that I would LOSE (avg over another 10,000 miles OCI) mpg, upon switch back to a conventional 5w20. Additionally passed the meager warranty period I run 20,000 miles OCI's. Again for the additional 10,000 miles, same/same (watching paint dry here comes to mind) mpg. i.e., no change. |
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Replying to: highmiler650 (Dec 21, 2007 11:01 am) Best Regards, Shipo |
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Replying to: shipo (Dec 21, 2007 11:39 am) Baring the doubling is understanding the modifying variables. So almost a sub variable but might be considered a main variable: 1. a percentage increase due to the greater "sump" with the addition of a bypass oil SYSTEM 2. use of a bypass oil filter. 3. Refreshment is NORMAL but "refreshment" for any condition indeed alters dilution rates, etc. Again, not a BAD thing. So indeed at BEST the documentation is sloppy. With no response to inquires, I would concur with your assessment. |
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Replying to: shipo (Dec 21, 2007 11:39 am)
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Replying to: highmiler650 (Dec 21, 2007 1:57 pm) |
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Replying to: highmiler650 (Dec 21, 2007 1:57 pm) So? I use a Pela 650 dipstick oil extractor. Who cares? The fact is that to do six UOAs, six oil samples HAD to be removed from the engine and sent off for destructive analysis. I use oil analysis too and trust me; they don't send your oil back to you when they're done with it. So, either he's lying about having the UOAs done in the first place, or he ran his engine low (doesn't sound probable given the rest of his post), or (most likely) he added oil throughout the 30,000+ miles of the test and then lied about how much he added. Best Regards, Shipo |
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