Re: 15-40 weight oil?

[Donald Gallimore <dongallimore@xxxxxxx>]

I used Rotella in the 440 this summer.  Seems like the next time I drove it, I wiped out a flat tappet hydraulic cam.  I think the ZDDP in the Rotella has dropped from what I've read.  Now I'm going to try the Vavoline Racing Oil (and add ZDDP plus for at least the new cam break-in.)

 Akron Don




________________________________
From: Karl M. <karlm2@xxxxxxxxxxxxx>
To: Mopar <mml@xxxxxxxxxxxxxx>
Sent: Sun, December 6, 2009 1:51:17 PM
Subject: Re: 15-40 weight oil?

The zinc pollutes the catalytic converters. So the regulations are requiring lower zinc in the oils.

Karl M.

Ron Hooper wrote:
> I heard you can run some diesel oil and it seems there are some issues but
> can not remember exactly what they are. I just changed the oil in the 440
> Dart and it cost 42 bucks, and I did it myself. I bought 5 quarts of 10-40
> Valvoline $3.99 each, oil filter 6 bucks, 16 oz of Lucas break in oil
> additive at 13 bucks, plus tax and I felt like  someone has just ripped me
> off. I have to buy the Lucas oil to put the zinc back in the 10w-40.
> 
> If you look at some of the racing oils, they have zinc in them but I could
> not find a variable viscosity. I am not sure what that cost a quart. In a
> recent Mopar magazine, there is a company advertising oil that is correct
> for the older cars. I have not looked into it so maybe someone else on this
> list could share more information on this subject.
> My question is, why did the oil companies totally stop making oil for the
> older cars using flat tappet lifters. Is there more of a racing application
> for oil with zinc than they are with classic car drivers? I suppose it is
> just another way to rip off the consumers.
> 
> Ron
> 
> 
> On Sat, Dec 5, 2009 at 9:53 PM, George Penick <penick@xxxxxxxxxxxx> wrote:
> 
>> Is there any problem running this oil that is made primarily for diesels
>> but
>> approved for gas engines as well (SM rating).
>> 
>> Thanks, George in Tallahassee
>> _______________________________________________

-- Karl M.
-------------------------------------------------------------------------------------
01 Dodge Ram 2500 SLT Club Cab, 4x4, Cummins turbo Diesel
67 Dart GT, V8, a/c, cc, ps ( going to be 360 ) {for sale $3500 with a bunch of parts}

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