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#4442028 - 06/26/17 02:43 PM Delo XLE 10W30 vs Delvac 1300 10W30 - Explain This
George7941 Offline

Registered: 05/10/05
Posts: 2092
Loc: Toronto, Canada
Delo 10W30 Pour point -46C, MRV @ -30C is 20400 Mpa.s. Details here
Delvac 1300 10W30 Pour point -33C, MRV @ -30C is 18600 Mpa.s. Details here

In spite of Delo being a synthetic blend and having a much lower pour point, it is a thicker oil at -30C?

Also both Delvac 10W30and 15W40 have the same pour point of -33C, which is odd. When I phoned Tech support at Mobil says the pour point values are correct.
2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.

#4442121 - 06/26/17 04:58 PM Re: Delo XLE 10W30 vs Delvac 1300 10W30 - Explain This [Re: George7941]
bullwinkle Offline

Registered: 10/09/04
Posts: 7330
Loc: Cincinnati, OH, USA
I wasn't aware Delo's ISOSYN was considered syn or syn blend, and maybe Mobil's "severely hydro-processed base stocks" are close enough to synthetic to narrow the gap. I would use whichever I could get easily, for the right price, all day long.
06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

#4442162 - 06/26/17 05:52 PM Re: Delo XLE 10W30 vs Delvac 1300 10W30 - Explain This [Re: George7941]
Dyusik Offline

Registered: 09/26/14
Posts: 1732
Loc: US-WA
Just brain storming, but I have a feeling Delo uses a heavier base stock and less vii, with their heavy numbers.
95 Cherokee 190K RT6 5W40,Denso
07 IS250 93K FB ?w??,FULL
04 YZF-R1 18K DELO 15w40,FU
99 HD XL1200S 18K 76 20w50,NAPAG
14 RX450h 28k M1 0w20,Denso

#4447435 - 07/02/17 01:04 PM Re: Delo XLE 10W30 vs Delvac 1300 10W30 - Explain This [Re: George7941]
A_Harman Offline

Registered: 10/01/10
Posts: 6745
Loc: Michigan
One of the oil formulators on BITOG could explain why an oil with a higher pour point could have a lower MRV reading.
But if I was looking for an oil with better cold flow properties, I would pick the one with the lower MRV reading. Delvac 1300 in this case. MRV is a more relevant measurement to what actually happens in an engine in cold conditions.
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

#4447445 - 07/02/17 01:16 PM Re: Delo XLE 10W30 vs Delvac 1300 10W30 - Explain This [Re: bullwinkle]
4WD Offline

Registered: 09/21/10
Posts: 5540
Loc: Texas/International
Some of these in 15w40's made with GII+ at around 11% NOACK and +4 HTHS are a great bang for the buck ...

I'll take them over T6 if you don't need 5w ...
2017 Tahoe 5.3L 4WD
2014 Fusion Hybrid
2013 Cruze RS 1.4T
2010 Canyon 5.3L 4WD