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#833997 - 02/14/07 08:46 AM Valvoline Synpower or Castrol Syntec?
Rob Taggs Offline

Registered: 09/08/04
Posts: 807
Loc: Lansing , Kansas
I'm just getting tired of scouting around for different oils and want to settle with just one for all my vehicles. The weight would be 5w-30 year round, the 0w-30 Castrol Syntec is a hit and miss when looking for it.

So if it were up to you would it be Valvoline Synpower or Castrol Syntec (American Version)?

#833998 - 02/14/07 09:08 AM Re: Valvoline Synpower or Castrol Syntec? [Re: Rob Taggs]
Merkava_4 Offline

Registered: 01/30/07
Posts: 12665
Loc: Clovis, CA
Which ever one I could get in the 5qt bottle at Walmart. In my town, that would be the Syntec.

#833999 - 02/14/07 09:12 AM Re: Valvoline Synpower or Castrol Syntec? [Re: Merkava_4]
Bryanccfshr Offline

Registered: 10/09/04
Posts: 5416
Loc: Durango, Co
Tough call. Which is more convenient for you to pick up regularly? If they are equally convenient I would slightly favor the Castrol syntec.
Integrity is what we do when no one's looking.

2010 FJ Cruiser
Mobil 1 0w20 10k mile or 1 year WECF OCI's
2012 BMW F30 with the new N20

#834000 - 02/14/07 04:30 PM Re: Valvoline Synpower or Castrol Syntec? [Re: Bryanccfshr]
TallPaul Offline

Registered: 10/22/03
Posts: 13069
Loc: By Detroit
IMO Maxlife Synthetic is better than Synpower.
The masses, thirsting for convenience, unwittingly dig the grave of the automobile as we knew it. The industry already has one foot in that grave.

#834001 - 02/14/07 09:14 PM Re: Valvoline Synpower or Castrol Syntec? [Re: TallPaul]
GMZ Offline

Registered: 06/04/06
Posts: 258
Loc: PNW
Syntec 5W-30 is my fav store brand oil, even over M1. Used it in 3 vehicles now with awesome results.
2006 Titanium Silver V6 SE 4x4-Sold
2007 Titanium Silver V8 SE 4x4-Wrecked
2008 Galactic Grey V8 SE 4x4-Current

#834002 - 02/14/07 11:23 PM Re: Valvoline Synpower or Castrol Syntec? [Re: GMZ]
addyguy Offline

Registered: 09/08/05
Posts: 13793
Loc: Canada
In the UOA section, there are some very impressive results with 5W-30 Syntec. I'd go with that. Seems to have a VERY robust add-pac with Moly, Boron, and high Calcium. Also, at only 9.7 cst, it will deliver good fuel economy, and it doesn't seem to shear down much from there.
2003 Mazda Tribute LX V-6, 191k miles.
MM F1 5W-20 conventional + Bardahl B2 additive.
MM MPH2 filter.