high zinc synthetic
Thread Starter
Racer
Joined: Jun 2012
Posts: 459
Likes: 1
From: LAUREL MD
high zinc synthetic
Anyone heard of and/or used this product. Comments, suggestions?
http://www.joegibbsdriven.com/produc...ance/ls30.html
http://www.joegibbsdriven.com/produc...ance/ls30.html
6th Gear
Joined: Jun 2007
Posts: 6
Likes: 0
From: WNC
I don't know if this will help answer your question but here is a writeup from someone who has spent years on this subject for the VW and Porsche communities and highly recommends JGD products, although he is not discussing the specific JGD viscosity you are asking about but rather a couple of others. Owners of those European cars have the same concerns about ZDDP levels as Corvette owners so his comments are worth consideration.
http://www.lnengineering.com/joegibbsracingoils.html
http://www.lnengineering.com/joegibbsracingoils.html
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
There's no need for high ZDDP for a roller-tappet cam...like our C5s have.
The reason for reduction of ZDDP in oil was due to the negative impact it has on catcons.
Use what's in the owner's manual
The reason for reduction of ZDDP in oil was due to the negative impact it has on catcons.
Use what's in the owner's manual
Last edited by billla; Aug 16, 2012 at 05:57 PM.
Le Mans Master
Joined: Aug 2000
Posts: 6,273
Likes: 14
From: Austin TX
Anyone heard of and/or used this product. Comments, suggestions?
http://www.joegibbsdriven.com/produc...ance/ls30.html
http://www.joegibbsdriven.com/produc...ance/ls30.html
Thread Starter
Racer
Joined: Jun 2012
Posts: 459
Likes: 1
From: LAUREL MD
Oil
What is considered high mileage. Just got my vette 2 months ago, 2000 vert, and it has 72k. Would this be considered high mileage? Would i be safe to, and should i use, a high zinc synthetic?
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Some people swear by expensive oils like that. For $11 a quart I'll pass and just pick up a good synthetic for 1/2 that cost when it's on sale.
Last edited by lionelhutz; Aug 16, 2012 at 12:23 AM.
Le Mans Master
Joined: Aug 2000
Posts: 6,273
Likes: 14
From: Austin TX
I think the Mobil 1 High Mileage container label says for cars with more than 75,000 miles.
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Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
Yes the phosphorus in ZDDP will clog a cat. ZDDP is only there to serve as a barrier between the cam lobe and flat tappet lifter. A roller cam doesnt need that barrier.
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
for a roller cam, it will offer no more protection than the oil spec'd by GM for a LS1. Go to the C3 forum and read up on what it actually does.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
The benefit to a C5 is zero - absolutely none...and you should probably go price factory replacement cats.
Many, MANY C5s go 100's of thousands miles with - oddly enough - exactly the oil that's specified in the owner's manual.
Racer
Joined: Oct 2010
Posts: 302
Likes: 2
From: Baton Rouge LA
The only place ZDDP matters is at the cam/lifter interface with a flat-tappet cam.
The benefit to a C5 is zero - absolutely none...and you should probably go price factory replacement cats.
Many, MANY C5s go 100's of thousands miles with - oddly enough - exactly the oil that's specified in the owner's manual.
The benefit to a C5 is zero - absolutely none...and you should probably go price factory replacement cats.
Many, MANY C5s go 100's of thousands miles with - oddly enough - exactly the oil that's specified in the owner's manual.
http://en.wikipedia.org/wiki/Zinc_di...e#Applications
See that bit about big end bearings? Also as a corrosion inhibitor? ZDDP is many uses other than as a sacrificial coating on flat tappets. Stating the benefit to a C5 is "zero" is quite a large statement.
That being said, I'll take my chances with a clogged cat.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
http://en.wikipedia.org/wiki/Zinc_di...e#Applications
See that bit about big end bearings? Also as a corrosion inhibitor? ZDDP is many uses other than as a sacrificial coating on flat tappets. Stating the benefit to a C5 is "zero" is quite a large statement.
That being said, I'll take my chances with a clogged cat.
See that bit about big end bearings? Also as a corrosion inhibitor? ZDDP is many uses other than as a sacrificial coating on flat tappets. Stating the benefit to a C5 is "zero" is quite a large statement.
That being said, I'll take my chances with a clogged cat.
Does anyone - anyone at all - see a durability issue with the LS engines running the oil they were designed for? No. None at all. Mine is pushing 100K daily driven and auto-x'd on a straight diet of Mobile 1.
But if somoene wants to out-think the GM engineers that designed the LS and selected the oil...go for it. It's your car and you can do what you like
Last edited by billla; Aug 16, 2012 at 07:46 PM.
Racer
Joined: Oct 2010
Posts: 302
Likes: 2
From: Baton Rouge LA
Not what I said. I said ZDDP beyond what's in the oil spec'd for our LS engines has zero benefit. ZDDP has been continually reduced and is now less than 600 PPM in the oils the engineers that built our cars spec'd.
Does anyone - anyone at all - see a durability issue with the LS engines running the oil they were designed for? No. None at all. Mine is pushing 100K daily driven and auto-x'd on a straight diet of Mobile 1.
But if somoene wants to out-think the GM engineers that designed the LS and selected the oil...go for it. It's your car and you can do what you like
Does anyone - anyone at all - see a durability issue with the LS engines running the oil they were designed for? No. None at all. Mine is pushing 100K daily driven and auto-x'd on a straight diet of Mobile 1.
But if somoene wants to out-think the GM engineers that designed the LS and selected the oil...go for it. It's your car and you can do what you like
The only place ZDDP matters is at the cam/lifter interface with a flat-tappet cam.
The benefit to a C5 is zero - absolutely none...and you should probably go price factory replacement cats.
The benefit to a C5 is zero - absolutely none...and you should probably go price factory replacement cats.
Engineers do a great job of picking a single best oil that works in most situations. One oil is not best in all situations. If you want to partake in the 5w-30 M1 is the "omg best oil for c5 eva!" Koolaid you go right ahead sir. I use M1 0w-40, because frankly it is spec'd as an amazing oil, better in all regards (additive package, HTHS rating, etc) compare to the M1 5w-30.
My cats have 100k on them, so anything I get beyond their already reached rated life is simple gravy.
These oil threads always turn into crap slinging. To sum it all up, people will use whatever oil they want.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
*sigh* The thread is high ZDDP oils for the C5. I said - and still do - that the additional ZDDP has zero value for the C5.
As for M1; I made no such observation; my owner's manual doesn't say Mobile 1 that I can see.
I'm facinated - you have 100K miles on M1 with <= 600 ppm ZDDP and now you've decided twice that amount is going to help with something based ojn a wikipedia article?
These oil threads get interesting because folks are always looking for the secret sauce and there isn't one. Use the oil in the manual. Change it when the DIC says you should. Done.
As for M1; I made no such observation; my owner's manual doesn't say Mobile 1 that I can see.
I'm facinated - you have 100K miles on M1 with <= 600 ppm ZDDP and now you've decided twice that amount is going to help with something based ojn a wikipedia article?
These oil threads get interesting because folks are always looking for the secret sauce and there isn't one. Use the oil in the manual. Change it when the DIC says you should. Done.
Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
I don't see any statement in there that could even remotely mean " said ZDDP beyond what's in the oil spec'd for our LS engines has zero benefit."
Engineers do a great job of picking a single best oil that works in most situations. One oil is not best in all situations. If you want to partake in the 5w-30 M1 is the "omg best oil for c5 eva!" Koolaid you go right ahead sir. I use M1 0w-40, because frankly it is spec'd as an amazing oil, better in all regards (additive package, HTHS rating, etc) compare to the M1 5w-30.
My cats have 100k on them, so anything I get beyond their already reached rated life is simple gravy.
These oil threads always turn into crap slinging. To sum it all up, people will use whatever oil they want.
Engineers do a great job of picking a single best oil that works in most situations. One oil is not best in all situations. If you want to partake in the 5w-30 M1 is the "omg best oil for c5 eva!" Koolaid you go right ahead sir. I use M1 0w-40, because frankly it is spec'd as an amazing oil, better in all regards (additive package, HTHS rating, etc) compare to the M1 5w-30.
My cats have 100k on them, so anything I get beyond their already reached rated life is simple gravy.
These oil threads always turn into crap slinging. To sum it all up, people will use whatever oil they want.
.....I dont understand where you come off thinking that way. The engineers DESIGNED this motor to last 200k using M1 5w-30 and 10w-30 (depending on climate) Owners manuals arent just for shelves you know.....wheres Evil when you need him.