What kind of Amsoil? - ZR-1 Net Registry Forums

ZR-1 Franz · 02-09-2013

Until now I used Mobil 1 Synthetic Motor Oil SAE 10W-30, especially for
the ZR-1 and for the Chevy pickup K 3500 4x4 with the 454 engine, but
also for other Chevrolets we own.
Now I would like to change to Amsoil. Amsoil says for these two cars that
SAE 10W-30 Signature Series is the best choice.
If I remeber right there was a discussion here whether it would be
better to use an Oil with Zinc additive, this would be Amsoil Z-Rod 10W-30
Synthetic Motor Oil. What do you think? Thank you for your help.

Franz

FU · 02-09-2013

http://www.zr1specialist.com/ Marc has plenty of information on his site.

Amsoil AMO 10-40

efnfast · 02-09-2013

I use Amsoil 10W-40 high zinc.

Gunny · 02-09-2013

Amsoil AMO 10-40 (high zinc formula) as per Marc Haibeck's recommendation.

As Frank mentioned read Marc's article.

GOLDCYLON · 02-09-2013

AMo 10w40 high zinc here

alwayscode390 · 02-09-2013

The previous owner used the Amsoil ... I am used to Mobil One ... will be doing the full Amsoil swap to all my cars I think.

Would the high zinc be suitable in all applications, or could it actually be worse for some engines? ---

hiperf406 · 02-09-2013

I use the Amsoil Zrod in my ZR1 & in my 2 solid lifter cars as well. It's what Amsoil recommended to me.

-=Jeff=- · 02-09-2013

Interesting on the Zrod recommendation. Need to check that out

secondchance · 02-09-2013

Quote:

Originally Posted by alwayscode390

The previous owner used the Amsoil ... I am used to Mobil One ... will be doing the full Amsoil swap to all my cars I think.

Would the high zinc be suitable in all applications, or could it actually be worse for some engines? ---

High zinc (or phosphate), from what I understand, can lead to catalytic converter failure. Automakers push to lower zddp in modern motor oil, from what I understand, was driven by this issue and its implication in emission warranty. So the downside may not be so much for other engines but shortened catalytic converter life may be the outcome.

Gunny · 02-09-2013

Read what Marc has to say about required levels of zinc
Next, use google to find the zinc levels in the various oils available to purchase.

Click HERE for a Mobil Table. You might also find some useful info HERE not a recommendation, just saying

Secondchance is correct ... too much zinc is bad for the cats. For those of us fortunate to run without cats then the zinc shouldn't be harming anything. But if our engines need a certain amount of zinc (again, refer to Marc's findings) then locating/using the oil that meets those specs seems a prudent course of action and that's why I'm using Amsoil AMO 10-40.

I live in a part of Georgia that was originally plantation land and still has a number of large farms that use heavy diesel equipment ... one of those farmers is a friend and he ALWAYS has Amsoil 10-40 on his shelves (it's the primary oil used in much of his farm equipment ... tractors, combines, harvesters, etc.) so I'm fortunate that I always have quick access to my Amsoil needs.

02-09-2013	#1
ZR-1 Franz Join Date: Aug 2005 Location: Solothurn, Switzerland Posts: 144	What kind of Amsoil? Until now I used Mobil 1 Synthetic Motor Oil SAE 10W-30, especially for the ZR-1 and for the Chevy pickup K 3500 4x4 with the 454 engine, but also for other Chevrolets we own. Now I would like to change to Amsoil. Amsoil says for these two cars that SAE 10W-30 Signature Series is the best choice. If I remeber right there was a discussion here whether it would be better to use an Oil with Zinc additive, this would be Amsoil Z-Rod 10W-30 Synthetic Motor Oil. What do you think? Thank you for your help. Franz

02-09-2013	#2
FU Join Date: Mar 2004 Location: Found Member Posts: 4,327	Re: What kind of Amsoil? http://www.zr1specialist.com/ Marc has plenty of information on his site. Amsoil AMO 10-40

02-09-2013	#3
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,561	Re: What kind of Amsoil? I use Amsoil 10W-40 high zinc.

02-09-2013	#4
Gunny Join Date: May 2005 Location: Georgia Mountains Posts: 918	Re: What kind of Amsoil? Amsoil AMO 10-40 (high zinc formula) as per Marc Haibeck's recommendation. As Frank mentioned read Marc's article. __________________ George Jones Founding Member #14 www.zrwon.com

02-09-2013	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,118	Re: What kind of Amsoil? AMo 10w40 high zinc here __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

02-09-2013	#6
alwayscode390 Join Date: Dec 2012 Location: STL Posts: 492	Re: What kind of Amsoil? The previous owner used the Amsoil ... I am used to Mobil One ... will be doing the full Amsoil swap to all my cars I think. Would the high zinc be suitable in all applications, or could it actually be worse for some engines? ---

02-09-2013	#7
hiperf406 Join Date: Apr 2007 Location: Spruce Grove Oilberta/In Mex for winter Posts: 1,045	Re: What kind of Amsoil? I use the Amsoil Zrod in my ZR1 & in my 2 solid lifter cars as well. It's what Amsoil recommended to me. __________________ lorne # 1748 Stock except for a modified Corsa exhaust. When the flag drops the bull sh1t stops!

02-09-2013	#8
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,158	Re: What kind of Amsoil? Interesting on the Zrod recommendation. Need to check that out __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

02-09-2013	#10
Gunny Join Date: May 2005 Location: Georgia Mountains Posts: 918	Re: What kind of Amsoil? Read what Marc has to say about required levels of zinc Next, use google to find the zinc levels in the various oils available to purchase. Click HERE for a Mobil Table. You might also find some useful info HERE not a recommendation, just saying Secondchance is correct ... too much zinc is bad for the cats. For those of us fortunate to run without cats then the zinc shouldn't be harming anything. But if our engines need a certain amount of zinc (again, refer to Marc's findings) then locating/using the oil that meets those specs seems a prudent course of action and that's why I'm using Amsoil AMO 10-40. I live in a part of Georgia that was originally plantation land and still has a number of large farms that use heavy diesel equipment ... one of those farmers is a friend and he ALWAYS has Amsoil 10-40 on his shelves (it's the primary oil used in much of his farm equipment ... tractors, combines, harvesters, etc.) so I'm fortunate that I always have quick access to my Amsoil needs.