Valvoline SYNP 10w30, 4521 miles, 01 Buick Regal

[smithph]

Here is the UOA for the Valvoline Synpower Synthetic 10w30.

The 1st column is the Synpower, and the 2nd column is the UOA done last year on NAPA Syn 10W-30. I posted the VOA's on both these oil last year in the VOA forum. Interesting compare since the NAPA oil is a Valvoline private label.

Oil: Valvoline SynPower 10w30

Auto: 01 Buick Regal, 3800 series II, 38,240 miles total

MI/HR ON OIL: 4,521 (I changed it a bit early due to a planned trip)
MI/HR ON UNIT: 38,240
DATE:04-15-2009

Element: (SynP, NAPA)
ALUMINUM: 1, 1
CHROMIUM: 1, 1
IRON: 9, 10
COPPER: 28, 21
LEAD: 10, 12
TIN: 5, 2
MOLY: 10, 39
NICKEL: 0, 0
MANGANESE: 1, 1
SILVER: 0, 0
TITANIUM: 0, 0
POTASSIUM: 3, 2
BORON: 9, 11
SILICON: 9, 9
SODIUM: 56, 209
CALCIUM: 2125, 1414
MAGNESIUM: 10, 12
PHOSPHOROUS: 661, 574
ZINC: 799, 735
BARIUM: 0, 0

SUS VISC. @210F: 62.1, 59.8
Cst Visc. @100C: 10.82, 10.16
Flashpoint: 405, 430
Fuel %: Antifreeze %: 0, 0
Water %: 0, 0
Insolubles %: 0.3, 0.2
TBN: 3.6, 2.4

 

[addyguy]

Not bad results, but lead is high for the miles. Yeah, it could be 'break in', but I don't like it, and I'd go higher visc. to see if it improves bearing wear. You're not going to muck up a warranty on an '01 by giving 40-weight a shot.

Just curious, why so low miles on the unit?

 

[smithph]

Shortly after purchase I was issued a company car for customer calls. This one became a weekend only driver for the 4 plus years I was on the company car plan.

40w? Rotella T Syn 5w-40 is on my futures list once I work thru my stash of SynPower and PP 5w-30.

 

[addyguy]

I'd go the RTS now and use your stash in other vehicles, or thicken it.