Schaeffers 700/9000 103,000 Oil still in.

[salesrep]

Cat 3406 Kenworth t800 1st column 10k on oil ( sampled 9/14/06) 587k on the rig. Schaeffers supreme 7000 15-40 Blend. 2nd column is with 20k on oil with 1 gallon of 7000 add. 3rd column 30k on oil 1 gal of schaeffers 9000 4-40 straight synthetic fill. 4th column 40k on oil 1 gal of 9000 add. 5th column 56k on oil 1 gal of 9000 fill. Last column 71k on oil 1 gal of 9000 add. Truck currently has 648,000 miles on it and 71k on oil. Which has Not been changed!

UPDATE>

Currently 103k which is now the last column. plan is to change oil at 120k.

Copper 3,4,4,5, 6,10,6
Iron 13,25,34,45, 57,87,100
alum 4,5,5,5,4,6,6
Chrom 0,0,0,0,1,1,1
Lead 3,4,5,6, 8,18,18
Moly 327,381,398,349, 353,401,376
Phos 1436,1659,1565,1373, 1368,1585,1466
Zinc 1529,1737,1675,1515, 1552,1762, 1608
Calc 4087,4809,4556,3987, 4015,4704,4186
Contaminents all nil
Visc 13.86,13.62,12.85,13.40, 12.21,12.96, 12.29
Soot .0,.0,.0,.1, .3,.2, .3
Sulfur 12,9,9,7, 3,13,6
Oxi 3,3,7,7, 6,11,10
Nit 1,1,2,4, 7,8,6
Silicon 4,4,5,5,5,6,5

Scheaffers Premium Diesel treat 2000 added every tank. Customer uses an FS 2500 bypass system from filtration solutions and changes every 10-12k with a half to one gallon of new oil.

 

[LargeCarManX2]

Looks like a 100K oil, plenty of life left in it, staying in the 40weight range. Wow, great oil....

I wonder if the iron number is in the normal range in relation to the 71K on the latest oil batch being run?

 

[D-Roc]

I love those moly numbers...

 

[Panzerman]

Look how high the metals are going from what they started out. I guess Iam not a extended oil change kinda guy, but I think oil is cheaper than engines and cant see the point in this. Use a synthetic and change less or a cheaper name brand and change more. For the price of the oil analysis's you could have just changed the oil. Oil analysis's cant measure the soot left behind either, this is especially important in newer diesels that keep the soot in instead of letting it go out the stacks like older trucks.

 

[badtlc]

Quote:

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Look how high the metals are going from what they started out. I guess Iam not a extended oil change kinda guy, but I think oil is cheaper than engines and cant see the point in this. Use a synthetic and change less or a cheaper name brand and change more. For the price of the oil analysis's you could have just changed the oil. Oil analysis's cant measure the soot left behind either, this is especially important in newer diesels that keep the soot in instead of letting it go out the stacks like older trucks.

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I dont think you could change the oil in this rig for the price of a UOA.

 

[D-Roc]

I'm all for extended intervals myself- but to a certain point. I guess that point is different for everyone.

 

[simple_gifts]

Sump, 10gals. I think refilling would make you an extended OCI convert.

 

[Panzerman]

$30,000 engine might keep me stuck in my ways as far as extended oil changes. remember when you are dealing with big trucks most buy in bulk, even small companies, you dont buy in Qts, you buy in drums, you dont buy in each, you buy in cases. Its all about tax write offs.

 

[Tim]

There's 7 analyses there. At $20 a pop...that's an oil change.

 

[salesrep]

bulk, QTs.,Gal, uoa's,filters, labor........Do the math.Extended drain intervals win. Period. PLUS you get to analyze the UOA and save time.
Spend $7 otc or $15-$25 with a premium oil. Better oil,more time, more money, better engine wear.