ZDDP......again

Mike(NEOhio) · Dec 19, 2017

I'm looking for some document that will tell me if the Valvoline I've always used contains ZDDP. Any web searches have only returned articles and discussions about when and why to use it. Valvoline's site only refers to racing oils. The MSDS were no help.

rustyfarmall · Dec 19, 2017

Can't help you with documentation, but if the oil does contain ZDDP, I think it is required to be listed on the label.

IanC · Dec 19, 2017

I can't speak to gasoline rated oils, but any diesel rated oil with classification newer than SI ( SJ, SK) cannot have ZDDP as it contaminates the emissions systems (DPF / SCA). Here is a link to the API web site which has a thorough explanation of the classification system. It was getting hard to find a 15W40 SI oil, but a local (MI) oil distributor Webster-Garner started having some blended. http://www.api.org/products-and-services/engine-oil/eolcs-categories-and-documents/oil-categories .

DeltaRed · Dec 19, 2017

what is ZDDP?

ptfarmer · Dec 19, 2017

(quoted from post at 07:42:31 12/19/17) what is ZDDP?

Zinc dialkyldithiophosphate, has good anti wear properties on flat surfaces like on a cam, and lifters. I use this if needed http://www.drivenracingoil.com/

docmirror · Dec 19, 2017

The best place to find additive package info on oil is the Material Safety Data Sheet(MSDS) from the oil company website. You will need to hunt a bit for it.

Start here: https://sds.valvoline.com/?_ga=2.204232848.149089256.1513696535-397583737.1513696535

You need to know the name, and maybe the part number. Then, be able to read the MSDS and find the ZDDP levels.

ZDDP has been reduced significantly as it is supposedly a serious health risk. If you stay with the oils for older cars, or high mileage cars they usually have higher levels of ZDDP(like 1100ppm or so)

docmirror · Dec 19, 2017

Since I can't edit, I have to reply again.

Wow, you are right, they've removed every reference to ZDDP from their MSDS. I looked it up not 8 months ago, and it was there. It's not even mentioned in their search terms.

What a shame. Valvoline has lost respect from me.

docmirror · Dec 19, 2017

I found it for P-66 Kendall brand which is what I typically use:

https://s3.amazonaws.com/phillips-prod/products/product_data_sheets/1a4d4081-c6a5-4101-88b2-c8ee98514338/original/PDS-GT-1-Competition.pdf?1477684110

shows 1200PPM for 20W-50 or 980PPM for straight 50wt.

Dave H (MI) · Dec 19, 2017

"they've removed every reference to ZDDP from their MSDS. "

Ever feel like you have fallen into acronym he!!?

johnlobb · Dec 19, 2017

I've heard ZDDP fouls catalytic converters. For more info if you're interested, the best website for oil and all related discussions is bobistheoilguy.com

Crazy Horse · Dec 19, 2017

The zinc additive is no longer available in the mass-marketed oil brands, gas or diesel ....... despite what some might say about this one having it or that one having it. Not sure if it just because of the catalytic converter problem or maybe that as well as some other environmental ones. Some small-market oils still have it as an additive, for example some (not all) specialty oils have it like brands for classic hot rods or older-designed high performance engines with flat-surface tappets. But expect to pay a premium price for that stuff. A lot of oil experts (if there is such an animal) claim that owners of older cars and trucks are unnecessarily pushing the panic button about current oils not having it. I'd be guessing that very few of us have an old car, truck, or tractor that could be damaged by using newer everyday oil brands. When you think of it, despite not having the zinc additive, look at all the other lubricating additives that modern oil has that weren't there 50 years ago.

JDEM · Dec 19, 2017

Many engine oils still have high ZDDP levels. Sometimes the MSDS sheet will tell you and sometimes not. Need to know what specific oil you have. I use Mobil 1 High Mileage in my older rigs because it has high ZDDP additives.

Here are some oils that I know have high levels of ZDDP

Shell Rotella T 15W-40 CI-4 Plus ZDDP - 1200
Shell Rotella T 15W-40 CI-4 ZDDP - 1100
Mobil One 15W-40 ZDDP 1100
Mobil One 5W-40 Turbo diesel truck - ZDDP 1100
Lucas Race Oil 10W-30 ZDDP 3000
Amsoil 10W-30 Z-Rod ZDDP 1400
Redline 15W-40 CI-4 ZDDP 1500
Chevron Delo 15W-40 400LE CI-4 ZDDP 1300

JDEM · Dec 19, 2017

Modern engines have more durable materials and designs that allows use of different additive packages.

Here is part of a current data sheet for Shell Rotella 15W-40 showing 1-2.4 percent ZDDP.

Crazy Horse · Dec 19, 2017

It appears that there are a variety of Rotella versions ..... I suspect the ones you buy at NAPA or Wally World, etc might be the kind without any of the zinc additive. Some types have it by the looks of it, for vehicles without catalytic converters for example. This is a Wiki link so it is subject to anyone changing it or deleting or adding to it (like you or me for example). Still interesting though, the whole subject is worthwhile reading. While some might question Wikipedia, it is at least as accurate as a lot of stuff posted by someone like Bob the Oil Guy. Not sure what his credentials are for evaluating oils, filters, etc.
Wikipedia Rotella Information

rlp in Co. · Dec 19, 2017

Walmart super tech high milage oil is what I use. What is the zinc content of this oil. My engines are all rebuilt older engines with flat taper lifters.

WGM · Dec 19, 2017

Back when these engines were built zinc was not added to motor oils. Not needed then, not needed now.

rlp in Co. · Dec 19, 2017

Not true. I don't know when they started adding zinc but I know that in the 70s and 80s flat tappet engines needed zinc. Oil alone is not enough to decrease wear on the cam.

rlp in Co. · Dec 19, 2017

Not true. I don't know when they started adding zink but I know that in the 70s and 80s flat tappet engines needed zinc. Oil alone is not enough to decrease wear on the cam.

Jon Hagen · Dec 19, 2017

Make that since the 60's when car makers started making high performance engines with flat tappet cams and very stiff valve springs for high rpm.

steve19438 · Dec 19, 2017

FWIW
Untitled URL Link

JDEM · Dec 19, 2017

I posted directly from the MSDS paper downloaded from Shell.

WGM · Dec 19, 2017

My bad. Should have investigated first. I was wrong.

dhermesc · Dec 21, 2017

Agreed. ZDDP levels for oils used in gas engines is extremely low or nonexistent in modern (SN) rated oils. If it is SJ or newer the levels are extremely low due to the catalytic converters. It's really not needed unless you have flat tappet engine with high compression valve springs. Typical valve springs have no need for it - all those years nondetergent oils were used they also lacked ZDDP.

ZDDP......again

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