 53belair
"2nd Year" Silver Supporting Member
Posts: 831
Age: 57
Loc: Ellerslie, Georgia
Reg: 03-25-07
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06-18-12 07:40 AM - Post#2238646
I met and talked with a valvoline company guy thie weekend. The subject of oil addatives came up. Just curious if anyone here has knoledge of oils with zinc added (like some of the high milage oils out there and Amsoil in particular)?
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 davidchristopher
"4th Year" Gold Supporting Member
Posts: 1660
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Loc: Saint George, Ontario, Ca...
Reg: 08-02-09
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06-18-12 08:09 AM - Post#2238658
In response to 53belair
Rotella has about the content of regular oil did 15-20 years ago.
From what I've been told, anyway.
1951 Chevrolet Styleline Special. (350 4 Muncie '55 Driveshaft CE crossmember Heidts Mustang II front suspension, 3:10 Posi)
The '51 Chevy Blog
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 2blu52
"12th Year" Silver Supporting Member
Posts: 13093
Age: 79
Loc: Montana
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06-18-12 08:28 AM - Post#2238663
In response to 53belair
Oils still have zinc much reduced and it does not make any difference with the valve system in the 50s car as they do not need it. For a new cam yes but daily use not necessary. There probably was no zinc in the oil in the 50s any way. Came along with higher compression engines and higher cam load to to increased valve spring tensions. 
"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"
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Tri5man
Frequent Contributor
Posts: 1512
Loc: Inlet Beach, FL
Reg: 06-26-07
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06-18-12 11:04 AM - Post#2238725
In response to 2blu52
I run Valvoline VR-1 racing oil. Has 1400 PPM of zinc and 1300 PPM of phosphorous. Not all Rotella has a high level of zinc as now diesels have catalytic converters. The Rotella needs to have a rating of C-4 to have an acceptable level of zinc.
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53belair
"2nd Year" Silver Supporting Member
Posts: 831
Age: 57
Loc: Ellerslie, Georgia
Reg: 03-25-07
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06-18-12 11:50 AM - Post#2238757
In response to 2blu52
I am thinking more in terms of use of these additives in newer & or hotter engines compared to the stock 216/235.
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 Panama Red
"3rd Year" Silver Supporting Member
Posts: 481
Age: 65
Loc: Jenison, Michigan
Reg: 08-29-10
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06-18-12 12:16 PM - Post#2238771
In response to 53belair
fwiw, I'm using Rizlone additive in my 235 with a Comp Cams cam. After running it all last summer, I inspected the lifters over the winter and all looked good.
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Bob_Hayden
"12th Year" Gold Supporting Member
Posts: 5744
Age: 66
Loc: Indianapolis, In. USA
Reg: 07-17-01
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 06-18-12 12:34 PM - Post#2238776
In response to 53belair
I use the VR1 in my 350. Right after I built it, before I knew about zink, I rounded off a cam lobe. I didn't break the cam is right so maybe it was that, maybe it was the oil I was using with not enought zink but why take a chance for the difference in price.
| Bob Hayden's 54 Chevy, 350 Engine with TH400 Tranny and 94 4X4 Blazer Rear End with 3:23 gears.(FINISHED PICS) </a> My 54 Albums |
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53belair
"2nd Year" Silver Supporting Member
Posts: 831
Age: 57
Loc: Ellerslie, Georgia
Reg: 03-25-07
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06-18-12 01:11 PM - Post#2238793
In response to Bob_Hayden
Good to know Bob. All the guys working on their rides has pushed me to take my 53 apart (laying all over the shop right now) and start over. I've got a rebuilt 350 on the stand and want to help it all I can.
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one4dad
Contributor
Posts: 491
Age: 70
Loc: Baton Rouge La
Reg: 01-17-10
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06-18-12 03:29 PM - Post#2238849
In response to 53belair
I added the zinc additive from comp cams and am running a high mileage oil that has zinc. Mobil oil. So far no issues, but only have about 500 miles +/- on engine.
Bill Wilson - 51 styleline Deluxe 2 door three speed , fentons and offy 2 carb manifold - is now a 235
Also a 1950 Chevy 2 door styleline deluxe, great patina , no running gear |
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Gene_Schneider
Ultra Senior Member
Posts: 10513
Loc: Wisconsin..USA
Reg: 09-27-02
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06-19-12 05:33 AM - Post#2239029
In response to one4dad
There is enough zinc in regular 10W-30 oil tp protect your cam and lifters.
The exception would be if you have a new cam as many new cams are of poor quality and they need all the help they can get.
Also too much zinc is not a good thing either.
| ChevGene
1934 Master sedan
1939 Master DeLuxe Town Sedan
1950 Styline DeLuxe Power Glide
1957 Nomad 283 PG
1963 Corvair Convertible |
Edited by Gene_Schneider on 06-19-12 05:34 AM. Reason for edit: No reason given.
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