M1 5W-40, '99 Saab 9³, 2.0L 4 cyl turbo, 6 months/4,820 miles

[Eiron]

code:

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Vehicle 1999 Saab 9³, 2.0L I4, light pressure turbo

Air filter K&N drop-in, installed at 20,000 miles, not yet cleaned

Miles on engine 57,006

Miles on oil 4,820

Time on oil 6 months (mid-Aug.04 – mid-Feb.05)

Oil filter Purolator PureOne

Oil capacity 4 liters, M1 5W-40

Oil added none

Oil used none

Driving Use 95%+ short trips (less than 10 miles)

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Copper 5

Iron 11

Chrome 1

Lead 6

Aluminum 3

Silicon 8

Molybdenum 1

Sodium 2

Calcium 2430

Tin 0

Potassium 3

Magnesium 386

Zinc 1300

Water Neg

Glycol Neg

Viscosity 14.2

Oxidation 54

Nitration 57

Sulfur Prod 32

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Lab S.O.S. Fluid Analysis, H.O. Penn Machinery

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Woooooo-hoooooo!!!

Obviously, I'm very pleased with these results when compared to my 4,700 mile UOA on M1 0W-40. Single-digit lead!! Near-single-digit iron!!!

I'll be the first to say that these two UOAs are not directly comparable, simply because I had so much going on during the 0W-40 OCI & not so much during this one.

The only constants between the two are:
1) The K&N still hasn't been cleaned,
2) No oil was either added or used,
3) We still have that hideous driving style of eternal short trips, errands & city driving, all during sub-zero winters.

The differences are:
1) The oil,
2) The oil filter,
3) The Auto-Rx clean/rinse (M1 5W-40 rinse oil UOA here),
4) The sampling method. I finally bought a sampling pump, so I no longer have to get under the car & catch the sample from a skewed drain plug.

After taking the sample, I changed the filter with a new PureOne & topped up with approximately 24 oz of fresh M1 5W-40. I'll run this to 9k mi, when I'll take another sample & then change both the oil & filter. From that point on I'll leave the filter in place for the entire interval. (I changed it this time to duplicate the filter swap during the 0W-40 OCI, & also to remove any additional junk released from the A-Rx clean/rinse.)

As usual, if I've left anything out I'll mention it when someone says something that reminds me of it.

 

[Al]

Really nice. I'd be happy too.

 

[Eiron]

Hey Al,

Thanks for the vote of confidence! Now I'm really looking forward to the 9k mi UOA. This OCI & the next will both be at 9k mi (to get my odo back onto even 10k mi oil changes). I plan on another UOA at that point. After that it'll be an OCI every 10k mi, regardless of time.

 

[Gary Allan]

Sounds like a plan. This is just about the best product money can buy in a 40 weight synth. Good work.

 

[quadrun1]

Very nice!