Chevron 10W-40 Supream 99 V6 Accord

[quick_16]

Chevron Supreme 10W-40
1999 Honda Accord
OEM Filter
6,839 Miles on oil
70,639 Miles on vehicle
Blackstone

Copper-15
Iron-15
Chromium-2
Aluminum-4
Lead-1
Tin-3
Molybdenum-65
Phosphorous-794
Zinc-953
Magnesium-5
Calcium-2312
Boron-32
Silicon-11

%Antifreeze- 0
%Fuel- %H20- 0
Visc- 67.4 @210
TBN- 0.9
Insolubles- 0.4

I use 10W-30 in the winter 10W-40 Summer
Wife's daily driver
Driving was 80/20 City/Highway
Paul

 

[sbc350gearhead]

Wear looks very good. I wouldn't run it that long though. Sheared to a heavy 30 but shearing with a conventional 10w40 is to be expected, and it really didn't shear badly for the mileage.

I really don't think that the 10w40 is necessary though. I would try 10w30, and retest. If the numbers are the same, then stick with the 30 weight for economy and HP reasons.........but that is me.

 

[buster]

Wear looks very good, but notice how the dino oil is completely spent with a TBN of .9 @ 7k miles.

 

[427Z06]

Does your wife drive like Danica Patrick(or for you older folks, Cha-Cha Muldowney)? Or does drive in a more sensible manner?

 

[sbc350gearhead]

OK, I know shirley.......but who is Danica Patrick?

 

[quick_16]

quote:

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Originally posted by buster:
completely spent with a TBN of .9 @ 7k miles.

---

Just in time oil change interval!

Perhaps 5k interval would be safer.

 

[buster]

quote:

---

Just in time oil change interval! Perhaps 5k interval would be safer

---

Thats why their are so many people who use nothing but cheap dino and change it every 3k miles can get very long engine life. They are simply putting in fresh oil so frequently. No need for synthetics really in many cars.

 

[Bror Jace]

Wear looks just OK ... but you did push it a bit going past 5,000 miles ... and that TBN has just fallen out of the safe zone.

This oil is cheap and you don't have anything to gain by going that extra 20%.

Chevron said a couple years ago that their 5W30 and 10W30 Supreme were Group II+ oils ... and I inferred that their other weights were Group II. So, their 10W40 might be group II ... and seems more prone to shear down.

I'd guess that this stuff was actully thinner at one point of this interval but oxidation had already begun to thicken it back up.

I bet 10W30 would do just fine in the summer.

--- Bror Jace

 

[427Z06]

quote:

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Originally posted by sbc350gearhead:
OK, I know shirley.......but who is Danica Patrick?

---

You never watch Spike TV (fomerly TNT, I believe), home of Car and Driver, HorsePower TV, Trucks?

http://www.danica-patrick.com/

 

[jthorner]

You got every last penny worth of use out of the oil with that low TBN, but the wear rates look good.

I would stick with 10W-30 rather than mess with the 10W-40 if using Chevron supreme. If you *really* want to run a heavier weight summer oil, use the Chevron Delo 15W-40.

John

 

[Steve S]

Chevron Supreme is not a long life oil. I would try Delo 400 in 10w/30, the additive levels make it a better candidate for the longer oil change intervals.

 

[Bror Jace]

"Chevron Supreme is not a long life oil."

Correct, no conventional PCMO really is.

"I would try Delo 400 in 10W30, the additive levels make it a better candidate for the longer oil change intervals."

Sure, if you can find it. If so, please post an analysis here. I'd love to see one ... or two, three, etc ...

--- Bror Jace