<VV> oil change to 15-40

[MarK Durham]

Ken, If it is SM rated, the oil will have too little ZDDP, probably 800 ppm
maximum. There are other Mobil 1 Delvac oils that have more. SM is a modern
engine rating for roller cams and roller rockers which work with much less
stress than our engines.
This is too little ZDDP for a new flat tappet engine.
The Mobil 1 15 w 50 has over 1200 ppm, is good for extended oil changes if
you like, and is $22.97 for 5 quarts at my local Wally's world. And it is a
full synthetic.

Mark Durham
Hauser, Idaho
62 Monza coupe Red/Red 4 speed

On Thu, Oct 9, 2014 at 6:16 PM, Ken Clark via VirtualVairs <
virtualvairs at corvair.org> wrote:

> The following info is on label of the Delvac oil which gave info as to
> what it can be used for:
> HD diesel oil 15-40 Hi performance is recommended for use in new and older
> engines.  Also meets requirements of AP-SM specs for gas engines.  I feel
> it should be very adequate for the engine I want to use it in.  Ken
>
>
>
> > To: bryan at skiblack.com
> > Date: Thu, 9 Oct 2014 14:42:04 -0400
> > CC: virtualvairs at corvair.org
> > Subject: Re: <VV> oil change to 15-40
> > From: virtualvairs at corvair.org
> >
> > Thanks to all for the information, I will keep tis info for future use.
> The Lakewood engine is just broken in after a rebuild.  Will consider what
> I received before I change the oil.  Ken
> >
> >
> > > Subject: Re: <VV> oil change to 15-40
> > > From: bryan at skiblack.com
> > > Date: Thu, 9 Oct 2014 10:34:15 -0400
> > > CC: virtualvairs at corvair.org
> > > To: kcvair at hotmail.com
> > >
> > > On Oct 8, 2014, at 10:34 PM, Ken Clark via VirtualVairs <
> virtualvairs at corvair.org> wrote:
> > >
> > > > Need an honest opinion on Mobil's Delvac 15-40, labeled as an oil
> for diesels to be used for my Lakewood.  Seems like I saw that mentioned at
> one time as a good grade of oil to use.  Has the zddp on the label.  I know
> there are other oils that do a good job, but this is one I have and
> considering using.
> > > > Ken
> > >
> > > Hi Ken,
> > >
> > > Be sure it's also rated for gasoline engines - many diesel oils are -
> and that it has enough ZDDP (>1000 is what I look for).  The two driving
> Corvairs here have non-rebuilt engines, I like the oil pressure better with
> Mobil 1 15W-50 in them.  For a rebuilt engine, I'd consider their Mobil 1
> Turbo Diesel 5W-40 since the clearances will be better, and I know it's
> gasoline rated.  If the Delvac meets the ZDDP and gasoline criteria it
> should be fine, although you can look through Richard Widman's info to find
> a superior oil versus "good enough".
> > >
> > > Notes - I realize a lot of folks like different oils for various
> reasons.  One reason I use M1 is because my cars leak a little, so being
> able to buy it at WalMart is a consideration for trips.  Given the oil
> consumption I'm also not willing to boost something else with an additive,
> I want one that comes with the correct level in the bottle.  For me, the
> cost is fairly low given the number of miles we drive, the cars only get
> one oil change a year and a couple extra quarts along the way.
> > >
> > > --Bryan
> > >
> > > Bryan Blackwell | Springfield, Va. | bryan at skiblack.com |
> http://autoxer.skiblack.com/
> > >   Corvairs: '62 700 Wagon, '64 Greenbrier, '65 Corsa, '66 Corsa
> > >   '69 Road Runner, '99 Neon R/T, '00 Miata SE, '09 Ford F-150
> > > "Why do something if you're not going to obsess about it?"
> > >
> > >
> > >
> >
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