So much for Mobil 1 .....
This is the second consecutive OCI on M1 HM. I did the first one following the last Castrol Gold (158k) and ran it for 7,500ish but did not sample it. the M1 HM did make a difference on consumption, but not enough to move the needle since I still needed to add. the Castrol gold was 1qt/5k or less and the second fill of M1 HM was 1qt/6k or less.
A couple things to note, perhaps. the TBN is very strong, but I added a full quart less than 1,000 miles before I did the change. I could have added less, but I was pulling a trailer so I just put the whole quart in since it was at just at the "add" mark (room for one full quart).
So this is another winter fill with plenty of idle time. I'm considering that there is a problem with the oiling to the top end which is resulting in camshaft and head wear (the cams ride directly on the aluminum head). what I find odd is that the lab is not flagging any problems. their comment was: "All wear rates normal. Abrasive and other contaminant levels are acceptable. Viscosity within specified operating range. Action: Resample next recommended service interval to further monitor" I'm thinking I might call them to get some insight on how 110 PPM of iron on a Triton v8 is "normal".
If I have to guess, my timing chain tensioners are leaking some causing top end oil issues. the problem with that is do I fix it, or let it wear itself out? its at 173k now, if I get 200 I'll be fine. the rest of the truck is pretty nice still, so it may even be worth putting an engine in it if needed, but a repair now would be cheaper -- IF I could know for sure what the problem was.
as much as I don't want to ..... I may have to go back to cheap oil and short OCI's.
All thoughts and interpretations are welcomed.
I will not be using Mobil 1 in this vehicle going further.
the Subaru loves it, but not the Ford.
currently trying Amsoil XL, but the next fill might be Trop Artic or Magnatec for 5k.
Code:
OIL Mobil 1 Castrol 5w30 Castrol 5w30 Trop 5w30 NAPA 5w20 5w30 Edge Edge Artic Synthetic High Mileage Gold Bottle Gold Bottle SynBlend MILES IN USE 6856 9,060 9,980 4,989 6,447 MILES 172300 158145 149,085 125,086 114,429 SAMPLE TAKEN 02/18/17 06/16/16 01/14/16 10/23/14 06/01/14 Metals (ppm) IRON 110 71 88 10 45 CHROMIUM 2 <1 2 <1 <1 LEAD <1 <1 1 <1 <1 COPPER 3 3 4 1 2 TIN 3 2 <1 <1 <1 ALUMINUM 27 12 19 4 22 NICKEL <1 1 <1 <1 <1 SILVER <1 <1 <1 <1 <1 TITANIUM <1 21 20 <1 <1 VANADIUM <1 <1 <1 <1 <1 Contaminants (ppm) SILICON 15 11 12 8 10 SODIUM 34 24 18 17 278 POTASSIUM 10 <1 <1 <5 6 Additives (ppm) MAGNESIUM 1048 154 278 14 118 CALCIUM 1375 1770 1990 2044 1792 BARIUM <1 1 <1 <1 <1 PHOSPHORUS 900 637 648 690 627 ZINC 970 667 755 761 730 MOLYBDENUM 95 66 69 15 6 BORON 200 62 58 70 9 Contaminants WATER (%) <0.05 <0.05 <0.05 <0.05 <0.05 Coolant No No No No No Physical Tests Visc (cSt 100C) 9.0 9.0 8.9 8.9 9.0 TBN (mgKOH/g) 3.0 1.4 2.4 2.6 2.5
Last edited:
