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Anyone using Amsoil with zinc additive?


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I use rotella t4 10w -30w oil, it is a diesel engine oil but according to rotella it can also be use in gas engines . it also has a higher zinc content than a lot of other oils on the market at a decent price tag!! [tsc store sells it]

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I can't find it at the moment but Amsoil has a blurb about this very subject, if I remember right the zinc you get in aftermarket third party products is in the wrong formulation and just dilutes the balance of the additive package put in by the oil company whether it be Amsoil or Royal Purple or Castrol.  It might be BS I don't know but when you have entire rows of shelves in the automotive section dedicated to "mechanic in a can" products I have to wonder if all this stuff did 1/10th of what it says it does then why wouldn't the oil companies use and put the other guys out of business.
I trust the large oil companies that have engineers on staff to formulate the additives required to do the different kind of jobs that the oil is asked to do.


I’m thinking that Amsoil, Royal Purple, Mobil, Penzoil, Castrol, etc. have figured out the proper ZDDP formulation by now so that it does little if any damage to the cats when used as intended without other oils or additives.

In 2 different vehicles I’ve been using Mobil 1 (14 year old car) and Castrol Edge (19 year old car) exclusively for the life of the vehicles. Both products have ZDDP formulas added to the oil, neither vehicle has ever failed emissions and have never had to replace Cats on either vehicle.

“WHEN USED AS INTENDED WITHOUT OTHER OILS OR ADDITIVES” being the critical point here....


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  • 4 weeks later...

Quick follow up on this....

Upon further consideration and research, it seems that the general consensus regarding "safe" levels of ZDDP (zinc & phosphorus) is about 800-900 ppm. Apparently these levels will not reduce the efficacy of the catalytic converter.

After speaking with the folks at AMSoil, they confirmed that the Z-Rod ZDDP levels are high enough to reduce the efficacy of the catalytic converter.

I explained to them that my 76' 280z needs to be smogged every 2 years.

AMSoil recommended their European Formula Improved 5W-40 Synthetic Oil, and said that several guys at AMSoil have old Z cars and use this product in their Z cars.

They do not publish their zinc and phosphorus levels on the website, but if you call and ask they will tell you.

This product has:

Zinc: 887ppm

Phosphorus: 788ppm

https://www.amsoil.com/shop/by-product/motor-oil/european/european-car-formula-5w-40-synthetic-motor-oil/?code=AFLQT-EA

I ordered a case and a couple of their filters too.

We'll see how it performs.

AFLQT.jpg

Edited by mbz
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  • 1 month later...

Quick follow up, so far Amsoil has been performing well. Have done several 75+ mile drives since the oil change and no issues.

Also, came across this head to head challenge between Royal Purple and Amsoil. It’s making me think I made the right decision switching to Amsoil.




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Excellent oil for sure,  the objections to Amsoil are mostly based around how they sell the product, kind of an Amway model.  I do see it being sold in some stores now, glad everything worked out for you.

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Yeah, I don’t know about how they distribute or sell their product. I just ordered direct from their website and it arrived next day, free shipping, from Las Vegas. They’re probably using Super Logistics (Rakuten) for fulfillment.

I’d be curious to see if someone from the South Eastern US orders from them, if it ships from Atlanta.


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1 hour ago, mbz said:

Yeah, I don’t know about how they distribute or sell their product. I just ordered direct from their website and it arrived next day, free shipping, from Las Vegas. 

Interesting company and marketing plan.  The company was started in the town where I grew up - Superior, WI.  Not quite on the edge of civilization, but you can see the edge from there.  My dad built their warehouse in the mid-1970s.  I was briefly a dealer in their pyramid marketing plan and used Amsoil in the Porsche 914 I was driving at the time, 40 years ago.  My biggest recollection was that when I switched from petroleum based oil to Amsoil in the 914 gas mileage improved greatly (32 mpg to 36 mpg, if I remember correctly) and I had to lower the idle speed significantly.  Slippery stuff.  

Dennis

 

Edited by psdenno
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I've seen the name Amsoil for years and seen comments about their "pyramid" marketing scheme but just now made the mental connection to Amway.  You don't make money until you get other people to start selling for you.  In the end everyone is an Amway salesperson.  Then... the rapture.  No offense...

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9 hours ago, Zed Head said:

I've seen the name Amsoil for years and seen comments about their "pyramid" marketing scheme but just now made the mental connection to Amway.  You don't make money until you get other people to start selling for you.  In the end everyone is an Amway salesperson.  Then... the rapture.  No offense...

But a lot of the distributors also sell it as part of their garage or autoparts business so the emphasis on getting more distributors working under you is not a priority.  Technically I'm a distributor but I only use to get a discount for me and friends.

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Full disclosure; I am not in anyway affiliated with AMSOIL, nor am I a reseller or distributor, nor do I stand to profit from this in any way, shape or form.

I am just looking for the best oil that will treat my old engine well and I want to share what I’ve found in my research with the group, in the event that anyone else is looking for information about motor oil for their vehicle. Hopefully someone will find this information helpful when considering what oil to use in their Z car.

Much of the consideration and research was in regards to protection for a 45 year old, original engine, and a tolerable level of ZDDP that would cause as little damage as possible to the catalytic converter as my car needs to meet very strict emissions standards.

Lastly.... Zed we had a gentleman’s agreement that we would stay off of each other’s threads. Kindly honor your word as I have kept to my promise. Thank you in advance.

Edited by mbz
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I don't even know who you are mbz.

And I reserve the right to reply to other Classiczcars.com member's posts.  The topic turned to the AM in AMsoil.  The marketing plan.  Not whatever your original question was.

I think that Tupperware has a similar arrangement.  

Edit - forgot to say.  You can use the Ignore feature of the forum, and never see my posts, as long as you are logged in.  I use it on a couple of members and it works well.  Just hover your mouse over my screen name and the option will show.  "Ignore User".

Edited by Zed Head
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15 hours ago, psdenno said:

Interesting company and marketing plan.  The company was started in the town where I grew up - Superior, WI.  Not quite on the edge of civilization, but you can see the edge from there.  My dad built their warehouse in the mid-1970s.  I was briefly a dealer in their pyramid marketing plan and used Amsoil in the Porsche 914 I was driving at the time, 40 years ago.  My biggest recollection was that when I switched from petroleum based oil to Amsoil in the 914 gas mileage improved greatly (32 mpg to 36 mpg, if I remember correctly) and I had to lower the idle speed significantly.  Slippery stuff.  

Dennis

 

I was a distributor for a brief period while I swapped out all my fluids on the 370Z. Great stuff and works awesome. Good backstory on the company too, as it is a family kinda businesss rather than a huge oil conglomeration product.  I never had to enlist new people or anything, just paid for a distribution agreement and got a 30% discount basically. I picked up the oil from their warehouse in Edmonton. Easy peasy.

14 hours ago, Zed Head said:

I've seen the name Amsoil for years and seen comments about their "pyramid" marketing scheme but just now made the mental connection to Amway.  You don't make money until you get other people to start selling for you.  In the end everyone is an Amway salesperson.  Then... the rapture.  No offense...

Never thought it was  pyramid scheme, but it might operate differently in the states than here.

Edited by wheee!
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1 hour ago, Zed Head said:

I don't even know who you are mbz.

And I reserve the right to reply to other Classiczcars.com member's posts.  The topic turned to the AM in AMsoil.  The marketing plan.  Not whatever your original question was.

I think that Tupperware has a similar arrangement.  

Edit - forgot to say.  You can use the Ignore feature of the forum, and never see my posts, as long as you are logged in.  I use it on a couple of members and it works well.  Just hover your mouse over my screen name and the option will show.  "Ignore User".

Hi Zed, Yes I'm the guy that you harassed last year on my (very long, too long) thread about a rough idle/running rich Z car. After my issue was resolved by a more helpful and experienced member of the group, you got upset at a funny picture I posted about "Zed's Haterade" - so I took it down because it seemed like your feelings got hurt.

Regarding the ignore user feature, I already have your comments blocked and it works well.

In this case, you jumped on my thread and wrote a comment about Amsoil related to a pyramid marketing scheme. Off topic and irrelevant in regards to the oil's performance, however it required a disclosure response because the intentions of the thread were impuned by your comment.

I'd prefer you to stay off my threads because I don't think you bring anything valid to the table with your comments. It's just mostly trolling.

I'll continue to stay off your threads, because I'm a man of my word.

Respond or don't, I could care less.

Edited by mbz
grammar
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