Anyone see API SQ?

[Nessism1]

VW knew about it in mid 2000. EA113 1.4 TSFI engine with both turbo and supercharger was prone to LSPI.
They addressed that with engineering changes, which is how it should be done.

Too bad VW wasn't as proactive on their water pumps and thermostat housings.

 

[edyvw]

Too bad VW wasn't as proactive on their water pumps and thermostat housings.

I am not sure that is a debate, but I can name several manufacturers who still cannot figure out brakes, steering racks, and of course, LSPI 20 years after it has been known about it.

 

[wemay]

The Havoline in the nearest Walmart is SQ.

 

[edyvw]

The Havoline in the nearest Walmart is SQ.

Many blenders had SQ test done even under SP label.
Pennzoil was running Euro 5W40 under API SN+ and then just changed the label to API SP without changing chemistry.
I would bet most oils that are API SP now, are already exceeding SPI SQ requirements, have been tested, and companies will switch to SQ labels once they run out of SP.

 

[loneryder]

It's my understanding is that Toyota is the first company to discover that oil was contributing to the problem, and they published a paper to that effect Toyota’s SAE 2013-01-2569

Is this wrong? I don't know. I came to learn this on this forum, though.

LSPI results from the auto makers programing the transmission to shift into the highest gear at low engine rpms thereby lugging the engine. How does oil solve that??

 

[Nuclear_42]

Here’s Amsoil Extended Life XL 5w-30 ordered a couple months ago.

 

[OVERKILL]

LSPI results from the auto makers programing the transmission to shift into the highest gear at low engine rpms thereby lugging the engine. How does oil solve that??

By using additives that either suppress (ZDDP) LSPI, or reducing additives that promote it (Calcium).

 

[OVERKILL]

Many blenders had SQ test done even under SP label.
Pennzoil was running Euro 5W40 under API SN+ and then just changed the label to API SP without changing chemistry.
I would bet most oils that are API SP now, are already exceeding SPI SQ requirements, have been tested, and companies will switch to SQ labels once they run out of SP.

Yeah, this was not a major change that required reformulation, like SN+ was, where detergent packages fundamentally changed. It's likely any oil that wasn't blended to be on the razor's edge of passing SP would pass SQ without issue.

 

[walterjay]

Spotted QS sq in WM two days ago

 

[wemay]

Many blenders had SQ test done even under SP label.
Pennzoil was running Euro 5W40 under API SN+ and then just changed the label to API SP without changing chemistry.
I would bet most oils that are API SP now, are already exceeding SPI SQ requirements, have been tested, and companies will switch to SQ labels once they run out of SP.

Yes, i agree. Probably all the majors have long since updated their chemistry, but as far as printed on the labels, Havoline is the first one i've seen.

 

[Blagoje]

Watch the movie Pulp Fiction, there is a suitcase in the movie that went opened something inside starts glowing gold. It is a bottle of Castrol Edge EP with API SQ certification.

 

[wemay]

API SQ has yet to be included in the Lubrizol spider chart, but ILSAC typically goes hand-in-hand with API. Here's GF-6 compared to GF-7...

 

[OVERKILL]

API SQ has yet to be included in the Lubrizol spider chart, but ILSAC typically goes hand-in-hand with API. Here's GF-6 compared to GF-7...

View attachment 294003

I broke down the differences on the previous page.

 

[Nessism1]

API SQ has yet to be included in the Lubrizol spider chart, but ILSAC typically goes hand-in-hand with API. Here's GF-6 compared to GF-7...

View attachment 294003

This is easier to understand. Thanks for posting.

 

[Navi]

My personal guess is SQ is simply a fine tuning of the SP formula. Everyone is welcome to submit their SQ formulations for testing and post it here. However I think the formula changed a while ago in anticipation or the current formula might already meet the spec. My expectation is for a UOA to not have much of a difference but we shall see and please post your UOA.

If I was in the oil business I would have changed the formula the moment it became known and worked directly with API behind the scenes.

 

[rondhol]

I start seeing ACEA C6 and C7 in the market. The ACEA C6 must pass LSPI, unlike C5 and older VW 508/509 oil.