| Re: [GMCnet] Use Diesel Oil in GMC Old engine? [message #205766] |
Wed, 24 April 2013 19:27  |
rallymaster
Messages: 662
Registered: February 2004
Location: North Plains, ORYGUN
Karma: -4
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Senior Member |
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I'm not about to run Mobil 1 when this engine only gets about 400 miles
to the quart, so I'm looking for alternatives. Is that a qt. of Rislone
and 4 or 5 qts of oil, depending on how you you do it, or in addition to
the 4 or 5 qts of oil.
ronC
On Wed, 24 Apr 2013 20:04:08 -0400 John Wright <powerjon@chartermi.net>
writes:
> It is advisable to run a ZDDP Additive for as long as you own the
> engine. I run Mobile 1 15/50 and I always add one qt of Rislone
> Engine oil Supplement with Zinc Treatment at oil change. I also add
> a half ounce of Cam-Shield at 2000 miles and change oil every 4000
> miles.
>
>
http://www.gmcmhphotos.com/photos/general-pictures/p48859-rislone-oil-add
itive.html
> and
> http://www.appliedgmc.com/prod.itml/icOid/1018
>
> JR Wright
> 78 Buskirk Stretch
> Michigan
>
> On Apr 24, 2013, at 1:41 PM, rallymaster@juno.com wrote:
>
> >
> > Bob, how long do you use the ZDDP oil on a freshly rebuilt
> engine?
> >
> > RonC
> >
> > On Tue, 23 Apr 2013 22:15:11 -0500 Bob de Kruyff
> <NEXT2POOL@AOL.COM>writes:
> >>
> >> Broham wrote on Tue, 23 April 2013 20:49
> >>> wow. i didn't realize it was that much to it. let me check and
>
> >> report back.
> >>
> >> There isn't. Unless you are breaking in a new engine, any oil on
>
> >> the market today will be more than adequate. If you are breaking
> in
> >> a new engine or have replaced the cam, a ZDDP additive is
> >> advisable.
> >> --
> >> Bob de Kruyff
> >> 78 Eleganza
> >> Chandler, AZ
> >
> > Ron & Linda Clark
> > 1978 Eleganza II
> > North Plains, ORYGUN
> > _______________________________________________
> > GMCnet mailing list
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>
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Ron & Linda Clark
1978 Eleganza II
North Plains, ORYGUN
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Ron & Linda Clark
North Plains, ORYGUN
78 Eleganza II
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| Re: [GMCnet] Use Diesel Oil in GMC Old engine? [message #205930 is a reply to message #205766] |
Thu, 25 April 2013 22:42  |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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Using synthetic on an oil burner not only costs a lot but resutls in rock hard deposits around the parts that are letting the oil pass by such as valves. Regarding the question of ZDDP additive and engine break-in, one oil change interval is more than enough. After that it's only a myth and feel good thing.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Use Diesel Oil in GMC Old engine? [message #205956 is a reply to message #205930] |
Fri, 26 April 2013 06:47 |
Jim Bounds
Messages: 842
Registered: January 2004
Karma: 0
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Senior Member |
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While I appreciate your "real world" experience with the fleet motors, when someone tells me an oil does not have the lubricity it used to, I get concerned. I had 2 flat tappet motors in a row wipe out in the first 1000 miles, I got roasted here on this forum on it then I found out about the ZDDP thing. Call me cautious but after that I refuse to put myself, my customers or my motors in harms way by not fully addressing this issue. Some have said after breakin it's no big deal. If you would have had to face folks whos motor had failed you would also not want to hang your stress level on "it will probably be no problem after breakin". Nope, not me and not my motors. I feel doing everything you can to lessen your impact can only be good afterall, motors can easily fail for no aparent reason-- why give it any more reason. Even with the roller cam design we use in our motors I still require an oil with increased ZDDP levels. I don;t look
at that as a myth or feel good-- I see it as a required precaution. We use Valvoline VR1 oils, there are others and cam shield added to lo lub oils raises the ZDDP levels. If you are responsible, the only responsible thing is to protect your investment as much as possible,
Jim Bounds
----------------
________________________________
From: Bob de Kruyff <NEXT2POOL@AOL.COM>
To: gmclist@temp.gmcnet.org
Sent: Thursday, April 25, 2013 11:42 PM
Subject: Re: [GMCnet] Use Diesel Oil in GMC Old engine?
Using synthetic on an oil burner not only costs a lot but resutls in rock hard deposits around the parts that are letting the oil pass by such as valves. Regarding the question of ZDDP additive and engine break-in, one oil change interval is more than enough. After that it's only a myth and feel good thing.
--
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Use Diesel Oil in GMC Old engine? [message #205981 is a reply to message #205956] |
Fri, 26 April 2013 10:16 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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I also use Valvoline VR-1 oil in my coach (20W-50) and have since the first oil change I did. It is not cheap at about six bucks a quart, but I see it as good insurance. Call it 'feel good' if you will, but it just makes sense to use good oil.
I have also gone with Manny's recommendation and use Mobil One transmission fluid in my transmission. It is even more costly than the premium motor oil, at about ten dollars per quart, but I don't see that as an issue if it will prolong the life of my tranny.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Use Diesel Oil in GMC Old engine? [message #206077 is a reply to message #205958] |
Fri, 26 April 2013 23:33 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| SeanKidd wrote on Fri, 26 April 2013 06:00 |
I concur, Valvoline VR1 in my wife's '66 hot rod mustang and the coach. The 66 mustang straight 6 200CID was buit to the nines by a reputable Nascar Busch series engine builder. 10:1 compression Clay smith cam, triple Offenhauser... Edlebrock break in oil then valvoline VR1 or Brad Penn Grade 1 if you can find it. http://www.penngrade1.com/Default.aspx
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No problem but there is no bad oil out there on a commercial basis. There are enthusiasts here that will use products that are overpriced and marketed to make people scared and feel caring just like dog food that tastes great for people. If you want to be practical and smart, go to Walmart and get the cheapest oil that complies with the most demanding OEM current standards. The net is a mixture of car enthusiasts who obsess and people who just want to enjoy their coaches and see the country. Take yur pick.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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