1998 Nissan Frontier 4x4, ka24de, GC 0w-30, 10,046 miles

[GSV]

Vehicle: 1998 Nissan Frontier 4x4 Engine: KA24DE DOHC Inline 4 Oil: German Castrol 0w-30 Oil Filter: Napa Gold 1344 (oversized)* changed filter at 6000 miles to Nissan OEM Oil Capacity: 4.2 qts. + Air Filter: Nissan OEM Magnetic drain plug - stays very clean, not covered like a tranny plug Miles on Engine at time of sample: 78,871 Miles on oil sample: 10,046 Make up oil: 1/8th qt. for filter change, otherwise no consumption Sample Date: 6/24/04 Lab: Blackstone Additives: 2oz. Lube Control at 3000/6000/9000 miles. 3 oz. Fuel Power every other tank. 1 tank of gas was treated with 3M #8813 Fuel System Cleaner. ***First number is from the 10,046 mile run, second is from 1st run with GC at 5,150 miles.*** Aluminum: 1 2 Chromium: 1 1 Iron: 7 8 Copper: 8 3 Lead: 6 8 Tin: 0 0 Molybdenum: 0 11 Nickel: 0 0 *Manganese: 37 8* Silver: 0 0 Titanium: 0 0 *Potassium: 24 0* Boron: 5 12 Silicon: 7 4 Sodium: 8 6 Calcium: 2675 2987 Magnesium: 94 101 Phosphorus: 656 766 Zinc: 801 969 Barium: 0 0 SUS @ 210F: 63.8 64.6 {should be between 58-65} Flashpoint: 410 375 Fuel: <0.5 <1.0 Antifreeze: 0 0 Water: 0 0 Insolubles: 0.4 0.3 TBN: 3.6 4.1 Vehicle use: Daily commuter, 100 miles per day, 85% highway, lots of long climbs and descents 7700 feet altitude to 4300 and back up, most climbing done in 4th gear at 3750 RPM @ 70mph. I have been hauling bedfulls of large rocks for some landscaping I'm doing. * I wish I knew what these numbers mean but I'll wait for Terry to interpret these. Other than Manganese and Potassium I'm happy as this engine is notorious for beating the snot out of oil.

 

[Brett Miller]

You may have a coolant leak developing but the oil did an awesome job!

 

[Pablo]

Awesome numbers! I guess if you are worried about a coolant leak do some other diagnostics - Terry should be of great help as well.

 

[SSDude]

Overall, it looks like GC did a terrific job.

 

[Patman]

quote:

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Originally posted by SSDude: Overall, it looks like GC did a terrific job.

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Definitely! And many people wondered if it could do 10k intervals, and this clearly shows it can.

 

[GSV]

T-Keith, Yes I used 2 oz. of LC every 3000 miles.(3K/6K and 9K) No initial dose. I won't quote Terry or anything but the manganese and potasiam are most likely not from a coolant leak. The single digit wear numbers for 10,000 miles has me pretty psyched about GC and LC.

 

[T-Keith]

Did you use any lube control for the last run? -T

 

[SSDude]

quote:

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Originally posted by Patman:

quote:

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Originally posted by SSDude: Overall, it looks like GC did a terrific job.

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Definitely! And many people wondered if it could do 10k intervals, and this clearly shows it can.

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It looks like he can go a few more thousand miles. The impressive thing is that the TBN is 3.6 after 10,000 miles.

 

[haley10]

Did you use LC on the 1st 5K run, though?? LC helps every oil, but the question is, how does GC do alone? Is it required with GC? Awesome results either way.

 

[GSV]

haley10, I did not use any additives on the first 5,150 mile run.

 

[T-Keith]

Sorry, I meant to say the first run. If you did use in on the 10k oil, but not the 5k oil, then alot of credit should go to the LC. Flash point is higher on the 10k run and wear levels are very close. -T

 

[haley10]

quote:

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Originally posted by T-Keith: If you did use in on the 10k oil, but not the 5k oil, then alot of credit should go to the LC. Flash point is higher on the 10k run and wear levels are very close. -T

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I am not sure we can draw that conclusion from these statistics. GC obviously likes LC, but we don't know how it would do without it under the same conditions. The difference in Flash Point is something else. I don't think LC affected this. LC may have kept insoluble in check, but then again GC may be some magic stuff on it's own?

 

[GSV]

LC may have kept insoluble in check, but then again GC may be some magic stuff on it's own? This is what I've been thinking. The LC kept everything nice and clean but the GC 0w-30 is some pretty tough oil. MolaKule has gone into detail about why this engine is unusually brutal on oil yet the GC seems to maintain its viscosity and TBN really well. For this engine (and others like it) an A3 rating is worth looking for.

 

[dropitby]

You sold me on whats going in my Nissan Truck after the ARX is over. Thanks for the report.

 

[T-Keith]

I agree haley10, more UOA results would be great. But this combo is obviously a good one. Would be great to know how much is due to GC and how much credit should go to LC. -T