Mobil-1 5W-30 EP (4 Qts.) + 15W-50 EP(1 Qt.), 2003 Ford 4.0L SOHC V-6, 5000 mile OCI

[chucky2]

Previous oil changes were:

575 factory fill changed out with Castrol GTX 5W-30 and Mobil-1 M1-209 oil filter.

3010 Castrol GTX 5W-30 changed out with Mobil-1 5W-30 SS and Mobil-1 M1-209 oil filter.

6025 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Mobil-1 M1-209 oil filter.

9025 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Mobil-1 M1-209 oil filter.

12029 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Mobil-1 M1-209 oil filter.

15057 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Wix 51372 oil filter.

19928 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Wix 51372 oil filter.

25000 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Motorcraft FL-820S oil filter.

30000 Mobil-1 5W-30 SS changed out with Mobil-1 5W-30 SS and Motorcraft FL-820S oil filter.

35036 Mobil-1 5W-30 SS (SM I believe) changed out with Mobil-1 5W-30 EP and Motorcraft FL-820S oil filter.

40050 Mobil-1 5W-30 EP changed out with Mobil-1 5W-30 EP and Motorcraft FL-820S oil filter. This was the first run of M1 Extended Performance.

45049 Mobil-1 5W-30 EP changed out with Mobil-1 4 Qts. 5w-30 EP + 1 Qt. 15W-50 EP mix and Motorcraft FL-820S oil filter. VOA is located here for that mix:

4 Qts. Mobil-1 5W-30 EP + 1 Qt. Mobil-1 15W-50 EP mix

50049 Mobil-1 (4 Qts.) 5W-30 EP + (1 Qt.) 15W-50 EP changed out with mix of same and Motorcraft FL-820S oil filter. VOA for mix used for 45049-50049

interval above - this mix should be same.

Results:

code:

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M1 oil type: EP-SL EP-SL EP-SL SS-SM SS-SM SS-SL SS-SL SS-SL SS-SL

Sample Date 09/05 06/05 05/05 03/05 01/04 09/04 06/04 03/04 10/03

Truck Milage 50049 45049 40050 35036 30001 25000 19928 15057 9025 Universal

Oil Milage 5000 4999 5014 5036 5000 5072 4871 3028 3000



Aluminum 2 3 3 3 3 3 3 4 4 5

Chromium 1 1 1 2 1 1 1 1 1 1

Iron 9 8 11 16 12 11 14 19 16 16

Copper 5 2 3 4 4 4 5 3 3 6

Lead 0 0 1 1 1 1 1 2 0 4

Tin 3 1 1 2 1 1 3 2 3 1

Molybdenum 79 90 85 66 60 77 59 69 77 48

Nickel 0 0 0 0 0 0 0 0 0 0

Manganese 0 0 0 1 0 1 1 1 1 1

Silver 0 0 0 0 0 0 0 0 0 0

Titanium 0 0 0 0 0 0 0 0 0 0

Potassium 0 0 0 0 0 0 0 3 1 2

Boron 150 199 160 98 120 163 138 157 155 50

Silicon 9 10 9 9 9 12 11 10 9 9

Sodium 8 6 8 5 5 8 6 4 7 16

Calcium 2866 3276 2833 2417 2412 2860 2938 3120 2887 2080

Magnesium 14 15 12 15 6 14 13 14 20 190

Phosphorus 838 880 750 678 608 761 756 730 799 751

Zinc 1050 1005 900 694 677 893 909 825 910 897

Barium 0 0 0 0 0 0 0 0 0 1



SuS@210F 66.9 63.9 62.4 60.1 59.8 61.0 60.9 59.3 61.3 should be 55-62

Flash_F 420 425 410 400 370 410 410 385 385 should be >365

Fuel %
Antifrz% 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 should be 0

Water % 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 should be
Insoles% 0.1 0.2 0.3 0.3 0.4 0.2 0.3 0.3 0.1 should be
TBN 6.1 5.3 5.4 4.4 5.7 5.7 5.8 5.4 8.5

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Blackstone Comments: After about the same miles oil use, wear shows virtually no changes and we found nothing in this oil that would suggest a problem is developing. The viscosity was a little high for a used 5W/30. Heat will often cause the viscosity to increase, though your insolubles were okay, so we doubt this is a heat related find. Insolubles are mostly oil oxidation due to heat and use and they read quite low, actually, after the 5,000 mile oil use run. No gas dilution or anti-freeze was found. At 50,049 miles we think this engine is doing well. The TBN was 6.1, vs 5.3 last time.

My comments: All good numbers this time around except for a fairly high reading on the Tin...not really sure what that is, but it tripled from the past 2 readings (don't know though, may be margin of error...or not...) This is the first of two runs I'm doing of a mix that is 4 Qts. Mobil-1 5W-30 EP + 1 Qt. Mobil-1 15W-50 EP...gives a mid-30 weight when in VOA form...not sure what 66.9 is...maybe it's high 30 weight (what I was looking for to happen) or low 40 weight (won't kill me, but I'd rather see a high 30 weight). Reason I'm doing this is I wanted to see how a thicker 30 weight did in this engine...the fill I put in when I drained this out was also the same mix...so we'll see what the trend looks like on it. Two things to note: 1.) I changed the air filter to the same I'd been running the past 15,000 miles, and that's a Baldwin. 2.) Is I definitely drove the truck hard this past OCI...high speed 2,800-3,200 sustained rpm runs, and a good amount of passing gear type acelleration...also a good amount of idling a few times. This is probably the hardest I've driven the truck since I've owned it...so I'll try and treat it normally like I've done the past runs so we can get a more realistic trend. My guess is the Tin will be back down to a 1 the next go around. After that, I've decided I'm going to pop in 5 Qts. Mobil-1 5W-30 EP but instead of a Motorcraft filter, I'm going to try the new Mobil-1 Extended Performance oil filter that out...they have at AutoZone the one I need for my truck. Assuming that trends the same, the 55k-60k run will be interesting. I'll run another Motorcraft filter for that, but the oil selection will be changed up to something not Mobil-1 EP...so, I'll have to do some thinking on that one to see what would be worth running for 2 back to back 5k stretches.

Chuck

 

[Steve S]

I don't think syn oil is necessary for 5,000 mile intervals.

 

[Blue99]

Chuck, thanks for continuing to add & post the UOA data for your vehicles. A very good data base for the additive changes in M1 SL/SM oils.

Will be interesting to see the 2nd run of this 12.1 cSt, 5W-30 & 15W-50 blend, as it appears to be a good option for the 4.0L Ford engine & your driving routine.

Here's a link for a good SUS to cSt calculator:

http://neptune.spacebears.com/cars/stories/margins.html

 

[rshaw125]

I currently have the same oil mix in my 20003 Explorer 4.0.I certainly don't intend on changing it until 8-10,000 miles. Judging from the TBN on this sample it looks like 10,000 miles will be easy.

 

[Triple_Se7en]

I did that mix last winter & spring. This time I used T & SUV 5W-40 instead of the 15W-50. For your 5K OCIs, you could save a few dollars by substituting two full synthetics for 7500 syn-blend & still have no worries. Mobil-1 filters are a waste of money for your shortened, EP OCIs.

 

[dkryan]

Chucky2: with the oil and OCIs you've been running, why are you planning on an "Auto-RC" (Auto-Rx?) treatment? It appears you've driven 41K miles in the past two years, unless I'm reading your chart incorrectly. At that rate, if you've got a 2003 truck (make/model?), you'll probably reach the mileage limit on the warranty about the same time as the 5-yr warranty limit.

Obviously, you'll then have 5 yrs and 100K miles on your truck, but how much "gunk" do you expect there to be present in your engine?

 

[chucky2]

dkryan- No mis-read...I live in O'Fallon, IL (about 16 miles from St. Louis, MO) and the rest of my family is up in the Chicagoland area...so when I need to go home (sometimes that a couple of weekends in a row), the miles start adding up quick. Couple that in with my grandparents living in northern IN, and the miles add up even quicker.

My thing for Auto-RX'ing it at 100,000 miles is that even by then, I should be getting some buildup somewhere in the engine...and, if I'm going to be pushing the OCI out at that point, I want to make sure I'm doing that as safely as possible. For $50 or so, it can't hurt...

Chuck

 

[chucky2]

Thanks for the comments everyone!

Steve S- I completely agree with you...however, because of my warranty (5 yrs./100,000 miles, whichever occurs first), the max I can go is 5,000 miles. Once the warranty is up, I'm run a 2 bottle treatment of Auto-RC, do another 5,000 mile run to make sure I'm still trending correctly, and then start bumping up in 2,500 mile imcrements until I feel it isn't safer to go any farther.

Blue99- No thanks needed, although it's appreciated!

That's exactly why I'm doing the trends the way I am...I'm trying to limit the amount of variables to whatever is realistically possible for a normal persons OCI...that way the results are skewed by only the type of driving (I'm pretty constant) and the environment.

Thanks for the link to the cst to sus converter...looks like I got exactly what I wanted: mid-30 weight in VOA form, and high-30 weight after 5,000 miles of use...perfect for what I was looking for from the mix...too bad I couldn't have kept my driving habits constant (I did really drive the truck hard this OCI).

rshaw125- Great minds think alike!

I totally agree with you...Mobil-1 EP in these engines should be good for at least 10,000 miles...unless it's winter and you do extremely short trips...or something is wrong with the engine.

Triple_Se7enp- You used the EP last spring, or it was the Mobil-1 SL you mixed? I'm thinking the SL, but just checking...

As for the filters, I'm sort of undecided on whether or not one of the very high efficiency filters really helps at all or not...the reason I'm going to try a Mobil-1 EP filter next time is purely to see what the trend will look like from using it...unless the next result of the mix I'm running is so whacked out I need to run another...and I'm not sure how I'd do that, since I change the oil when I sample, I'd have to put in the mix again.......guess I could do that...maybe I will now that I think about it... Choices, choices...

Chuck

 

[rshaw125]

How much oil did you use on the 5,000 mile oci? I checked my 4.0 (43,000 miles) Sunday using the same mix as you and it was down almost 1/2 quart after 4500 miles.I was hoping the addition of the one quart of 15W50 EP would eliminate oil usage over my 10,000 oci.This is the third run on Mobil one the other two consisted of 5 quarts of 5W30.I'm hoping it might level off.

 

[chucky2]

rshaw125- As far as I can tell, my truck has never used any oil...I usually check the next day after I've changed it, on a level surface, after the oil has had PLENTY of time to drain into the pan, and it's basically right in the same place it is when I check it a few days before changing.

I'll keep a closer eye on it this time around...just to make sure...

Chuck