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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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2.3 DISI Turbo I4 Miles on engine 9838 Miles on oil 5046 Date sampled 12/31/07 Make Up Oil 0 OEM Mazda Filter Mobil 1 5w30 Aluminum 4 Chromium 1 Iron 40 Copper 83 Lead 2 Tin 0 Moly 80 Nickel 1 Manganese 1 Silver 0 Ti 0 Potassium 2 Boron 38 Silicon 12 Sodium 6 Calcium 2634 Magnesium 11 Phosphorus 624 Zinc 808 Barium 2 Sus Visc  210F 56.2 should be 55-62 cST Visc 100 C 9.13 should be 8.8-11.1 Flashpoint in F 375 should be >365 Fuel % 1/3 to 1/2 of what some other owners are reporting. Silicon is a bit high as well, but again it is in line with other UOAs of this motor. Blackstone believes that all three numbers will settle down by 15K-20K. At least the motor isn't completely wrecking the oil like the M54 in the X3... 
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Replying to: roadburner (Jan 13, 2008 9:13 am) Okay, let's see here: - The Iron looks a bit high, however given that your engine is still breaking in, no red flag there. - I'm thinking that the Copper looks pretty high as well, probably also due to the break in process. - Contrary to what Blackstone says, I think the Silicon looks perfectly fine, especially given how young your engine is. All in all, a most promising UOA. Given that I'm a "0W" bigot, I am of course going to suggest that you start using the new "Mobil 1 0W-30 Advanced Fuel Economy" even though you don't live up here where it can get seriously frosty. 
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Replying to: shipo (Jan 13, 2008 12:08 pm) Got a little hasty with the cut and paste; the TBN was 2.9. Boy, I wonder what conventional oil would look like after 7.5K miles, like some folks are doing...
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Replying to: roadburner (Jan 13, 2008 1:05 pm) My sense from your (normal) results are Mazdaspeed engines are more consumptive of oil/oil additives than say Honda Civic. So for example, my Civic oem recommendation is 10,000 miles OCI's with conventional oil. |
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Replying to: roadburner (Jan 13, 2008 1:05 pm) Best Regards, Shipo |
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Replying to: roadburner (Jan 13, 2008 9:13 am)
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Replying to: ruking1 (Jan 13, 2008 2:14 pm) It seems that the new direct injection engines are prone fuel dilution issues, particularly the twin turbo BMW I6 as well as the normally aspirated V8 in the Audi RS4. Since my fuel % was <0.5 I must be living right, as Blackstone considers anything <2.0% to be accepatble.
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Replying to: roadburner (Jan 13, 2008 5:48 pm) |
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Replying to: ruking1 (Jan 13, 2008 5:47 pm) The manual says that any SM 5W-30 is acceptable. I selected Mobil 1 because of the good results I've had in other engines as well as the fact that this Mobil 1 grade meets the Honda/Acura HTO-06 standards. |
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Replying to: cliffs (Jan 12, 2008 8:33 am) |
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