Relevance of PQIA

[edhackett]

Here's a quote from the operator's manual of my 1941 John Deere tractor:
Quote:
The engine of this tractor, with its full force-feed pressure lubricating system, has one of the finest oiling systems it is possible to produce. Do not handicap it by trying to save money with cheap oil. High-grade oils withstand heat and wear for a longer time. Cheap oils soon become thin and loose their lubricating qualities.

It is impossible to determine the quality of an oil by its appearance. As a result, inferior oil often is sold as a quality product at a lower price. It pays to buy only nationally-known, high quality brands of oil. Don't take chances.


It looks like that advice is still sound 70 years later. Let's hope that with PQIA on the scene, that advice becomes out of date.

Ed

 

[chubbs1]

It is very true, look at the PQIA website. Only the majors formulate quality lubes, with the exception of WPP (which is pretty close to a major).

 

[dparm]

Plenty of boutique oils are proving that the small companies can crank out stellar oils. Schaeffer's, RLI, Motul, Amsoil, etc.

 

[daves87rs]

Originally Posted By: dparm
Plenty of boutique oils are proving that the small companies can crank out stellar oils. Schaeffer's, RLI, Motul, Amsoil, etc.



True...just have to watch the fly by night ones...

 

[Gene K]

Originally Posted By: daves87rs
Originally Posted By: dparm
Plenty of boutique oils are proving that the small companies can crank out stellar oils. Schaeffer's, RLI, Motul, Amsoil, etc.



True...just have to watch the fly by night ones...


Hmmmm.... I would say most of those are fly by night compared to nearly 200 year old Schaeffer's.

Warren Unilube gets a lot of flack but I dont know if any of their products have been "off" lately. Ive been waiting on a Peak VOA/UOA.

 

[Gene K]

To late to edit: I meant that Warren Unilube is close to being a major and their issues in California seemed to be issues with wrong product in the container and failure to mark lot numbers. As opposed to substandard product and so far no farther isssues have been noted and I suspect California (along with some other states) are watching them like a hawk.

 

[dparm]

Originally Posted By: Gene K
Originally Posted By: daves87rs
Originally Posted By: dparm
Plenty of boutique oils are proving that the small companies can crank out stellar oils. Schaeffer's, RLI, Motul, Amsoil, etc.



True...just have to watch the fly by night ones...


Hmmmm.... I would say most of those are fly by night compared to nearly 200 year old Schaeffer's.

Warren Unilube gets a lot of flack but I dont know if any of their products have been "off" lately. Ive been waiting on a Peak VOA/UOA.



Hey now, Motul is pushing 160 ;-)

 

[tommygunn]

I like that paragraph

I'm guessing they then go on to list the oil/API/SAE specs that the tractor requires?

With the likes of API themselves, I don't think I'd buy a product without the donut on the back of the bottle....which brings a good point. I noticed the "SAE30" straight 30 weight oil by Rotella in the gallon jug does not have any API specs on it....kind of strange....considering even SuperTech and Valvoline SAE30 has the donut on the back of the bottle.


Was curious if the Rotella was a "diesel" spec oil, or a standard "conventional"....all it says is "Heavy Duty Motor Oil" heh.

 

[Boomer]

My understanding is the Rotella 30W is Sj which is no longer supported, hence no label for that.