2017 Ford F53 6.8V-10 Kendall GT-1 5W-30 4765 miles

[AITG]

Code


Miles on lube 1113 4883 5226 4478 4765

Miles on Unit 1113 5996 11222 15700 20465

Fe 34 21 14 14 21

Ch 0 0 0 0 0

Ni 1 0 0 0 0

Al 7 4 4 4 4

Cu 22 7 3 2 3

Pb 0 0 0 0 0

Sn 0 0 0 0 0

Cd 0 0 0 0 0

Ag 0 0 0 0 0

V 0 0 0 0 0

Si 88 46 24 21 19

Na 10 5 4 3 3

K 8 3 2 2 3

Ti 0 85 93 95 99

Mo 85 24 17 17 17

Sb 0 0 0 0 0

Mn 4 1 0 0 0

Li 0 0 0 0 0

B 211 79 64 78 76

Mg 15 12 11 9 11

Ca 2068 2161 2134 2175 2524

Ba 3 0 0 0 0

P 757 679 680 666 720

Zn 760 797 840 770 818

Fuel dilution 2.3 2.8 2.6 1.8 2.2

Soot
Water
Vis, 100C cSt 7.4 8.6 8.9 9.1 8.9


No makeup oil added. After seeing the fuel dilution in each UOA I switched to 5W-30 (Ford's recommended oil for turbo DI engines which have some dilution issues).
I'm happy with the numbers.

 

[buster]

Looks good. CP makes good oil.

 

[bulwnkl]

Thanks for sharing. The GT-1 Line is too fragmented for me to quite follow or understand these days. Clearly this particular version is not an anti-LSPI lube, since it is still high-Ca and low-Mg.
I can't tell from your post: Has Ford converted the V-10 to DI?

 

[buster]

+1^

 

[CT8]

No DI on the hd type engines.The wife's 2018 F350 with the 6.2 gas engine is port injection.

 

[dnewton3]

Looks good. Overall in line with what we'd expect from a mod-motor.
Keep 'er up!

 

[xtell]

dnewton3,

The 6.8 engine in my 2008 F350 cab chassis, according to the owners manual, lists 5w-20 weight oil as the specified viscosity. However, a lot of members here prefer to run 5w-30 weight oil in this specific engine with very good engine oil analysis results. Is there a benefit to running the 5w-30 over 5w-20 oil in this specific V-10 engine? I'm from Northern Ohio and the truck sees heavy use summer and winter.Your thoughts on this would be appreciated.

nuff said,

xtell. .

 

[dnewton3]

Generally the typical mod motors (4.6L, 5.4L, 6.8L) show no preference to vis. The 5.4L 3v motors have shown issues with the VVT, but there's no correlation to any particular vis causing or avoiding the issue.

Your 6.8L (regardless if it's a 2v or 3v) does not have VVT. And they run well when just getting normal service. The Fe count will be a tad higher on the 6.8L because you've got two more cylinders producing wear, but on a "per cylinder" basis, it's still very admirable. Some applications with the 6.8L take 7 qrts, but most take 6, just like the 5.4L. 5w-30 is perfectly fine and if you're happy with it, then by all means use it. There is no proof that macro data can support to show that 5w-30 is "better" than 5w-20, but it's certainly not any worse.

 

[xtell]

dnewton3

Thank you for the reply. Yes, my 6.8 is a 3v / 7 quart sump engine. I'll give 5w-30 a run on my next oil change and see how the engine runs.