GC, 02 Accord i4 5525 mi

[gtoracer]

48555 mi @ end of interval
01/20/04--05/25/04 in service
M1 5-30 previus fill (14) moly
K&N HP-1004 Filter (this interval)
wife's car driven normal
Blackstone labs

1. Alu 2
2. Chro 0
3. iron 12
4. Copper 4
5. Lead 2
6. Tin 0
7. Moly 14
8. Boron 15
9. Silicon 10
10. Sodium 5
11. Calcium 3080
12. Mag 96
13. Phosp 701
14. Zinc 868
15. TBN 4.5

Blackstone comments
The oil could have stayed in use , try 6000 mi next time.
GC and Wix 51344 in car now 5.25Qts total refill

I would like to go 7500 next time what does everyone think?
Cya Pete

Blackstone comments

 

[Schmoe]

With a TBN of 4.5 at 5.5K, I'd say that would be pushing it. I'd probably go to 6.5K and call it even.

 

[427Z06]

I'm not an expert at reading these things, but with the limited amount of info provided I'd say this UOA looks pretty darn good. Looks like this engine likes the high 30 Visc GC. (Patman will be pleased.) Would be intersting to compare a couple of runs of GC with a couple of runs of M1 0w20. Ever consider running such an experiment?

As far as the TBN, I think it has to get down to 1.0 with Blackstone Labs method to be of concern, so I believe it would make 7500 miles.

[ June 10, 2004, 11:02 AM: Message edited by: 427Z06 ]

 

[Patman]

Regarding TBN, don't forget that it will drop faster in colder weather, plus it often drops faster on the first run with a new oil too. I think 7500 would be no problem for this oil in this vehicle, and the TBN will probably still end up higher at the end of his next UOA than it did on this one.

 

[quadrun1]

What were the insolubles? Curious how the K&N oil filter did.

 

[gtoracer]

insolubles were 0.4

 

[Quattro Pete]

quote:

---

Originally posted by gtoracer:
I would like to go 7500 next time what does everyone think?

---

I think that should be fine.

 

[Schmoe]

Geeeeeeesh, I seem to be in the minority here. My hypothesis was based on not doing another UOA and being safe.

 

[gtoracer]

427z06 Yes I am planning on running M1 0-20 next winter, the current fill of GC should reach 7500 miles sometime in Oct. so my next fill will be for the winter of 04-05,and therein lies the rub, I am a firm beleiver in picking one brand/type of and sticking with it. With M1 I can run a 0-20 in the winter and mix 0-30/0-40 in the summer for a GC like vis. I think GC is a superior oil but it doesn't give me this flexability.


Since I am a one fingered typer any element in the uoa that I didn't list was 0,it saves me typing.Anyone needing anymore info just ask and I will post.


Thanks one and all for your valued input
Cya Pete