Pennzoil Platinum 5W30, 9,649 miles, Saturn Sky

Messages
119
Location
Ash, NC
2007 Saturn Sky 2.4L VVT Comments: Wix Filter Fourth oil change since new, all using PP 5W30 7% remaining on OLM Blackstone Labs Test results: Oil...............Pennz Plat. 5W30 Filter............Wix Total Miles.....28,355 Miles on oil....9,649 Time on Oil....10 Mo Make up oil.....0 Aluminum.......4 Chromium.......1 Iron..............16 Copper...........2 Lead..............0 Tin...............0 Moly.............56 Nickel...........1 Manganese.....2 Silver............0 Titanium.........0 Potassium.......2 Boron............18 Silicon...........8 Sodium..........11 Calcium.........2845 Magnesium......17 Phosphorus.....650 Zinc..............828 Barium............0 Flashpoint F.....395 Fuel...............<.5 Antifreeze........0 Water.............0 Insoluables.......0.2 SUS [email protected] cST [email protected] TBN...............1.8
 
Messages
686
Location
PA
did well, but a bit of a dissapointing TBN for a quality synthetic on a pretty easy engine under 10k miles.
 
Messages
6,987
Location
Michigan
That looks great. I think the TBN is fine. It made it to almost 10,000 miles and the TBN is still above a 1. Most people think regular Syn oils should be able to do 10,000 miles so there you are. **Remember PP is not marketed as a Long OCI oil
 
Messages
15,056
Location
Canada
Perfect run. Good show! BTW - nice car. I like the look of the Sky a lot better than the Solstice...hang onto it, it will be a collector car soon!
 
Messages
686
Location
PA
Your point is valid. That being said, regular dino oils are usually good for 6-8k in engines like these. Heck, the stock OLM is probably set for dino oils and look what it was saying!! PP tends to hold it's TBN fairly well from what I've seen. This engine is fairly easy to oils (albeit, I know more about the older 2.2 liter version). I consider 1.8 to be pretty depleted, as most likely the TAN is higher than the TBN at that point. So to me, this run of PP shows great results but I'd be hesitant to run it to 10k EVERY time, as an adverse condition (i.e. harder driving, extreme ambient temps, etc.) could deplete that TBN even further. Unless this run was under some sort of adverse condition, which could be the case, or there could've been alot of residual oil from the last oil change (whatever that was) that we don't know about. Joe
 
Messages
11,185
Location
Bad Axe, MI
 Originally Posted By: ZZman
That looks great. I think the TBN is fine. It made it to almost 10,000 miles and the TBN is still above a 1.
I agree it could have sqweeezed 10k..
 

Patman

Staff member
Messages
21,985
Location
Oakville, Ontario
 Originally Posted By: tackleberry625
does this engine usually produce iron like this? Everything else looks good.
Iron doesn't look bad to me, keep in mind this OCI was almost 10k. So if it were a 5 or 6k interval the iron would've most likely been 9ppm or less.
 
Messages
34,999
Location
NY
I'd think 10,000 miles would be the limit. Based on what I've learned about reading UOA's this one looks very good. I'd cap it at 10,000 miles as my maximum for that oil and filter combo.
 

Rick_A

Thread starter
Messages
119
Location
Ash, NC
I’m pretty happy with these results. Especially since I bought several cases of the oil at 99 cents a qt.! Once I run out of PP I’ll probably try one of the 10W30 HDEOs in it, but that will be a while with 10,000 mile OCIs. Rick
 
Messages
5,164
Location
Great White North.. eh
yep, great report. 10k miles (16k km ) is a lot of miles imho and PP appeared to go that far just fine. TBN of 1.8 means there's a little life left, but I wouldn't push it much further. What this UOA tells me is that GM's olm likes to push an oil to it's useful life. So I would use a syn like PP if I were to obey the olm.
 
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