When to change it?

[UNC151]

Gang,

I last changed my AF at 62,055 and I now have just shy of 98K on my FX4. The Napa Gold was a good choice as it reduced the silicon in my used oil analysis from 19/21 to 11/13 as seen in the series of used oil analysis below.

I have about 35K on the AF now; I do not want to open filter housing to check it--it may introduce more silicon.

What say you? 40K? 45K? Wait for the silicon to rise in the UOA?



Code:


Year: 2010 Make: Ford Model: F-150 FX4

Engine: 5.4L FFV Transmission: 6R80 Axle: 9.75 Ford ELD (3.73)



-

CONVENTIONAL > SYNTHETIC

|

|

Date: 11/12 08/12 06/12 | 05/12 02/12 11/11 09/11 07/11 06/11 05/11 03/11 02/11 01/11 10/10 9/10

Oil Brand/Type: Mobil Super 5000 Mobil Super 5000 Mobil Super 5000 | PU PU PU PU PU PU PU PU PU PU PU MC

Oil Viscosity: 5W-20 5W-20 5W-20 | 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20 5W-20

API Service: SN SN SN | SM{A} SM SM SM SM SM SM SM SM SM SM SM

Oil Filter: MC MC MC | MC MC MC MC MC MC MC MC MC MC MC MC

Air Filter: NG NG NG | NG NG{B} MC MC MC MC{B} MC MC MC MC MC MC

Lab: BLKST BLKST BLKST | BLKST BLKST BLKST BLKST BLKST BLKST BLKST BLKST BLKST BLKST BLKST BLKST

|

|

Truck Mileage: 89,211 80,927 74,447 | 69,305 62,055 54,575 47,075 39,770 32,280 27,100 21,600 16,600 10,600 4,500 991

Oil Mileage: 8,285 6,480 5,142 | 7,250 7,480 7,500 7,305 7,490 5,180 5,500 5,000 6,000 6,100 3,509 991

|

Aluminum: 3 2 2 | 3 3 5 3 2 2 3 3 6 3 3 3

Chromium 1 1 1 | 1 1 1 1 1 1 1 1 1 1 1 0

Iron: 12 10 10 | 11 8 13 8 9 7 9 10 18 13 10 18

Copper: 2 2 1 | 2 1 2 2 2 2 3 4 4 5 9 41

Lead: 0 0 1 | 0 0 0 0 0 0 0 0 0 0 0 2

Tin: 1 4 0 | 0 0 1 0 0 0 0 0 0 0 0 0

Molybdenum: 6 3 11 | 48 56 46 47 58 55 54 45 47 52 48 42

Nickel: 1 1 0 | 0 1 0 0 0 0 1 0 0 0 0 0

Manganese: 1 1 0 | 0 0 1 0 0 0 0 1 1 1 2 10

Silver: 0 0 0 | 0 0 0 0 0 0 0 0 0 0 0 0

Titanium: 32 30 24 | 2 0 0 0 0 0 0 1 0 0 0 0

Potassium: 4 4 2 | 6 0 6 5 1 0 2 3 4 2 3 14

Boron: 4 7 9 | 91 249 156 144 156 233 244 230 249 278 258 272

Silicon: 12 11 12 | 13 11 16 19 21 19 19 17 16 29 45 111

Sodium: 362 374 284 | 4 4 7 5 3 3 3 4 4 4 4 9

Calcium: 2276 1954 2195 | 2647 3168 3003 3053 2941 2900 2814 2613 2740 2911 2706 2203

Magnesium: 19 12 15 | 17 15 17 17 16 12 12 11 12 12 12 14

Phosphorus: 735 624 655 | 688 728 671 668 710 713 676 608 629 691 643 773

Zinc: 797 738 765 | 762 820 724 743 861 834 813 675 718 774 752 835

Barium: 0 0 0 | 0 0 0 0 0 0 0 0 0 0 1 16

|

cSt Visc. @ 100°C (UOA) 7.96 8.05 7.73 | 8.34 8.25 7.93 7.80 8.45 8.04 8.14 8.21 8.12 7.72 7.94 7.09

|

VOA Mobil Super 5000 cSt Visc. @ 100°C 7.48 7.48 7.48 | --- --- --- --- --- --- --- --- --- --- --- ---

MOBIL cSt Visc. @ 100°C 8.4 8.4 8.4 | --- --- --- --- --- --- --- --- --- --- --- ---

|

VOA PU cSt Visc. @ 100°C --- --- --- | 7.62 7.62 7.62 7.62 7.62 7.62 7.62 7.62 7.62 7.62 7.62 ---

SOPUS cSt Visc. @ 100°C --- --- --- | 8.41 8.41 8.41 8.41 8.41 8.41 8.41 8.41 8.41 8.41 8.41 ---

|

SUS Viscosity @ 210°F 52.3 52.6 51.5 | 53.5 53.2 52.2 51.7 53.9 52.5 52.9 53.1 52.8 51.5 52.2 49.4

Flashpoint in °F 510 390 {C} | 415 405 420 415 410 425 405 390 410 390 400 390

MOBIL Flashpoint in °F 446 446 446 | --- --- --- --- --- --- --- --- --- --- --- ---

SOPUS Flashpoint in °F --- --- --- | 435 435 435 435 435 435 435 435 435 435 435 ---

|

Fuel %
Antifreeze % 0.0 0.0 0.0 | 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Water % 0.2
Insolubles % 0.4 0.2 0.1 | 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

TBN 2.7 2.6 3.7 | --- --- --- 5.4 --- --- 5.6 4.8 5.3 9.4 7.5 ---

TAN 2.6 4.3 --- | --- --- --- --- --- --- --- --- --- --- --- ---

|

|

CONVENTIONAL > SYNTHETIC

-



NOTES:



Acronyms:



BLKST=Blackstone | Mobil Super 5000=Mobil | PU=Pennzoil





{A} Possibly SN in SM bottle; note drop in Calcium

{B} Air filter change; MC=Motorcraft, NG=Napa Gold

{C} Blackstone spilled sample; not enough to test FP and Fuel%

 

[Barkleymut]

Just change the darn thing, even if you introduce a tiny amount of silicon it is not like it will do any damage. Not sleeping because you are wondering if your AF now looks like a black brick could cause damage to your health.

 

[UNC151]

Originally Posted By: Barkleymut
Just change the darn thing, even if you introduce a tiny amount of silicon it is not like it will do any damage. Not sleeping because you are wondering if your AF now looks like a black brick could cause damage to your health.

LOL - no worries; I am not losing sleep. I just want to use it to the fullest (they are not outrageously expensive, but still).

 

[cp3]

What's the recommendation in the manual? If you're not there yet I would at least wait till then.

If you're passed, pick a number (50000?) and check it....maybe buy a restriction gauge and put in at that time. Being only a little over a year old I don't imagine there is anything wrong with it yet. Lots of people with the gauges are learning that AFs last much longer than most think.

 

[Smokescreen]

My air filter for my truck went 100K miles and it could have easily gone more...I just got paranoid because the filter was 8 years old.

 

[Jim Allen]

I'd strongly advise adding a Filterminder (google it). Pretty easy to do and it will answer the question absolutely, now and forever.

Otherwise, there is no way to tell because each area is different. If your area is dusty, the filter might need changing sooner. If the air is cleaner, maybe later. The one thing you don't have to worry about is that the filter will get worse as it loads up. In fact, just the opposite happens. Efficiency increases as it loads up. As the filter loads up past a certain point, you will feel a loss of power eventually. MPG won't change until you really feel a big loss of power and you will have gone way past what you should. The factory recommendation is a composite average, slanted towards selling more filters.

Unless your area is very dusty, I'll bet your filter is little more than half done at 35K.

 

[rrounds]

I'm at a little over 50k miles on my air filter in my S2000 and the gauge has not moved yet, so I don't know how far I can go with the one I have.

Here are some pic's of my Filterminder
http://s188.photobucket.com/user/rodrounds/library/Honda Intake

 

[UNC151]

Originally Posted By: rrounds
I'm at a little over 50k miles on my air filter in my S2000 and the gauge has not moved yet, so I don't know how far I can go with the one I have.

Here are some pic's of my Filterminder
http://s188.photobucket.com/user/rodrounds/library/Honda Intake

Woah! It is much larger than I expected; thanks for the photos!