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Flat Tappet Engine Oil
#1
Just wondering what everyone is using for oil after their break-in periods for the flat tappet motors?

After talking to my builder (Dasco Race Engies) here in STL, he told me that he prefers either the Brad Penn or Joe Gibbs oil as they both have high zinc content.

Just about through my break-in period and will be changing oil soon.

Just wondering what the consensus was before I made a decision
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#2
I run DynoCat 20-50 mineral oil on my 351 C 4v, plenty of zink. But this is in Norway.

Have also been told Joe Gibbs is a very good oil for our engines. Not only the high zink level, but the correct balance of additives also.
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#3
I use Rotella it still has the zink in it to protct the cam.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#4
I have used Rotella in my gas engines for many years. I t does have higher zinclevels, but no where close to those of Gibbs. I bought a case of Competition Cams break in oil, only to later realize it is a parrafin based oil. I set the left over aside for future engine builds and am now running http://www.jegs.com/i/Comp-Cams/249/1595...Id=1354642

[Image: 1_01_07_15_8_53_18.png]

"I love my Hookers!" and "Get some Strange" probably have a different connotation to non automotive enthusiasts!
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#5
Jeff73Mach1;84178 Wrote:I have used Rotella in my gas engines for many years. I t does have higher zinclevels, but no where close to those of Gibbs. I bought a case of Competition Cams break in oil, only to later realize it is a parrafin based oil. I set the left over aside for future engine builds and am now running http://www.jegs.com/i/Comp-Cams/249/1595...Id=1354642
WOW! kinda pricey Jeff! A little overkill I think, but I can understand guarenteed to protect your cam and engine work.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#6
Zinc or zinc/phosphorus is actually short for Zinc DialkylDithiophosphates or ZDDP. The amount of ZDDP was reduced because it clogs up the catalytic converter on the "newer" vehicles.

One has to define "high enough" ZDDP content. The optimal zinc and phosphorus content is is between 1200 and 1600 ppm. Up to 2000ppm is ok. The highest ppm I've seen is 1850. Additives could put you over 2000 ppm if used with oil that already has a high level of ZDDP. I am not a fan of oil additives of any type or brand.

A few popular oils that have the correct ZDDP content are:
Mobil 1 15w-50. Full synthetic oil.
Valvoline VR1 Racing Oil (VR1) 10w-30. Conventional, non-synthetic oil.
Rotella T and Rotella T6 Syn 5W-40.

I personally like synthetic oils and use the Mobil 1 15w-50 & Rotella T6 in all my flat tappet engines.

Some of the Rotella oils have low ZDDP levels. Make sure you buy the Rotella T or Rotella T6 oil. I use Rotella T6 in my diesel excursion. It's a diesel oil but can be used in gas engines and work just as well.

Lab analysis of Rotella T6:

http://www.bobistheoilguy.com/forums/ubb...ost2330040

Mobil 1 Product Guide:[/b] [url]http://www.mobiloil.com/USA-English/Moto..._Guide.pdf[/url]

http://www.valvoline.com/products/consum...tor-oil/6/

Everything you ever wanted to know about motor oil: (VERY informative and a good read)
http://www.bobistheoilguy.com/motor-oil-101/

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
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#7
Valvoline VR1 Racing Oil 10W/30.
Has high zinc and phosphorous content.
My engine is a high compression four barrel Cleveland
with a "mild" cam recently rebuilt.
It cost about $8 but your engine is worth it.

mike

[Image: 1_11_11_13_11_50_27.png]
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#8
Don65Stang;84189 Wrote:Zinc or zinc/phosphorus is actually short for Zinc DialkylDithiophosphates or ZDDP. The amount of ZDDP was reduced because it clogs up the catalytic converter on the "newer" vehicles.

One has to define "high enough" ZDDP content. The optimal zinc and phosphorus content is is between 1200 and 1600 ppm. Up to 2000ppm is ok. The highest ppm I've seen is 1850. Additives could put you over 2000 ppm if used with oil that already has a high level of ZDDP. I am not a fan of oil additives of any type or brand.

A few popular oils that have the correct ZDDP content are:
Mobil 1 15w-50. Full synthetic oil.
Valvoline VR1 Racing Oil (VR1) 10w-30. Conventional, non-synthetic oil.
Rotella T and Rotella T6 Syn 5W-40.

I personally like synthetic oils and use the Mobil 1 15w-50 & Rotella T6 in all my flat tappet engines.

Some of the Rotella oils have low ZDDP levels. Make sure you buy the Rotella T or Rotella T6 oil. I use Rotella T6 in my diesel excursion. It's a diesel oil but can be used in gas engines and work just as well.

Lab analysis of Rotella T6:

http://www.bobistheoilguy.com/forums/ubb...ost2330040

Mobil 1 Product Guide:[/b] [url]http://www.mobiloil.com/USA-English/Moto..._Guide.pdf[/url]

http://www.valvoline.com/products/consum...tor-oil/6/

Everything you ever wanted to know about motor oil: (VERY informative and a good read)
http://www.bobistheoilguy.com/motor-oil-101/

Big +1 on Don's post! NO additives. I use Joe Gibbs, Maxima, or Amsoil equivalent in all flat tappet engines, cheap insurance. Chuck
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#9
Just go roller and let the worries go awayBig Grin
  Reply
#10
Tnfastbk;84195 Wrote:Just go roller and let the worries go awayBig Grin

+1 on that thumbdancebanana
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