Mobil 1 5W/30, 7,078, 1996 Acura RL 3.5 141,454

[DuckRyder]

Comments from Blackstone: Yep, lead is coming down. It's not perfectly normal just yet, but give it another oil change or two and it should drop more than this (assuming the bearings are wearing well). All other wear is pretty steady. Iron increased a little, and if you go ahead and take your next oil change up to 9,000 miles, it will increase more. You can figure out how much iron you're getting per mile by dividing iron by miles on the oil. As long as that rate stays constant, then the higher iron (or other metals) won't be a problem. The TBN read 3.1, still good. No contamination found.

Code:

OIL           M1 5W/30   
MILES IN USE  7,078 miles         
MILES         141,454 miles
SAMPLE TAKEN  01/03/2012 Univ Avg; 

ALUMINUM         4           3     
CHROMIUM         1           1   
IRON             24          12    
COPPER           4           21
LEAD             8           1       
TIN              0           0        
MOLYBDENUM       108         81       
NICKEL           1           0        
MANGANESE        0           1        
SILVER           0           0 
TITANIUM         0           0
POTASSIUM        3           1
BORON            54          44       
SILICON          17          12       
SODIUM           13          30       
CALCIUM          2347        2201     
MAGNESIUM        138         33     
PHOSPHORUS       766         655      
ZINC             796         793     
BARIUM           0           0
     
INSOLUBLES       0.3%            
WATER            0%               
FLASHPOINT ºF    390            
SUS VIS 210ºF    59.6     
cSt @ 212ºF      10.10
Fuel             <0.5
TBN              3.1

 

[LeakySeals]

Not sure which one to comment on, because I have a general question. The iron numbers are elevated on all your vehicles. How long have you been using M1? Are these 1st runs? second?

 

[DuckRyder]

Originally Posted By: LeakySeals

Not sure which one to comment on, because I have a general question. The iron numbers are elevated on all your vehicles. How long have you been using M1? Are these 1st runs? second?

Note unit miles and sample dates. The Civic has been on M1 since about 24,000 miles. These reports are the first and second UOA's done. The Acura has been on Mobil 1 since 127,000 and these are the first and second UOA's on it as well. It has been in the family since new and been dealer serviced with Syntec Blend and BGMOA prior.

 

[DuckRyder]

Originally Posted By: from a related thread

Will be interesting to see how the M1 5w20 SN works. This is the SM formulation so keep in mind there is a way different additive pack in the new formula. Maybe better.

I took a look at the remaining bottle and it is SM, not only that but I recall that for one of these cars some of the bottles were the older square style (I had a lot of oil sitting around) so I suppose its possible that that some of the oil is older. That said, I will make sure to use SN for the next change coming up and make sure to get the "new" formula. I'm also considering M1 EP along with a 10,000 change interval. For the Acura, it has had 10/30 Syntec Blend run in the past along with BG-MOA. I'm getting a little smoke at cold start but it isn't burning oil and doesn't smoke any other time. Since there is ZERO chance that I'm tearing to top end apart to do valve seals, I'm considering using M1 high mileage, but there are no leaks or seeps and I'm concerned about the seal swelling properties. I actually have 7 quarts of 10w/30HM that I got for another car I was considering using for the next change only. I did some searching on Mobil 1 SN and didn't come up with any specifics on the new additive package, so if someone could point me to a thread (also Extended Performance related to standard M1 and High Mileage) I would be greatly appreciative. I will post the current fill (still SM) after the change.