Pennz HM10w30, 3950mi,1999 Jeep Wrangler 4.0L

[Kcoastie]

Included is the UOA I've been meaning to put up for a while, I believe this oil had probably 4 solid months on it when changed. I used a K&N oil filter and air filter was a K&N filter from a Rusty's Offroad intake kit. I live in coastal North Carolina so sand is EVERYWHERE, so I'm pretty proud my silicon wasn't higher. Only notable difference is this was my first sample taken after two separate wash/rinse cycles with Auto RX

 

[Kcoastie]

Well I obviously don't know what I'm doing so here's the link to the image, http://s1180.photobucket.com/albums/x420/kcoastie8204/?action=view&current=99Jeep_img_0.jpg

 

[addyguy]

Get lab to re-run it - additive values are way off.

Beyond that, it is really good!

 

[ARCOgraphite]

Addguy, you expect Ca to be a tiny bit higher? Looks sorta normal to me given B-S =/- 20%(!)accuracy.

 

[addyguy]

Zn and P are what stand out to me as being off the most!

 

[Kcoastie]

do you think the Zn and P levels could have something to do with previously using the Auto RX a couple of times?

 

[addyguy]

Nope. Would have no effect.

Oil is fine, lab just isn't reading it properly, so you're not getting the accurate 'read' you paid for!