Mobil 1 EP doesn't meet Honda specs?

[wemay]

Originally Posted By: double vanos
When HTO-06 came out the oils available weren't quite as advanced as they are now. It is a turbo deposit test that Honda had determined was necessary. Now, here on bitog, we have UOAs with V6 Ecoboost engines running lots of miles on conventional oil and doing just fine. HTO-06 is a fine test and nowadays many oils COULD meet it if they wanted to, they're just not going to waste the money. I can't think of a manufacturer that currently lists it as a requirement.


+1

 

[dblshock]

Originally Posted By: wemay
Originally Posted By: dblshock
be interesting to know what came first, Honda/Acura HTO-06 spec or M1 5w30 HTO-06 spec formulation.








that answers that, thx...So Honda created the spec for a one off engine?..never used again by any mfg.

 

[Phishin]

Originally Posted By: crazyoildude
Actually Honda engines were rated the most reliable in the 80's but these days some of them are really bad there have been a number of class action lawsuits Honda lost.. When i had the engine shop we did a ton of the Honda engines..


There will always be "something" that isn't right in a few Honda engines. The VCT Actuator problem found in many cars is one that is found in Honda 4 cylinders. My car does it when it's cold out and it's been sitting for a day or so.

But you'd honestly be hard pressed to find nearly any engine (OPE, V-Twins, 4 or 6 cylinders) that would last longer and are less prone to problems than anything Honda offers. This statement is true for the last 35+ years.

 

[njohnson]

Originally Posted By: dblshock
Originally Posted By: wemay
Originally Posted By: dblshock
be interesting to know what came first, Honda/Acura HTO-06 spec or M1 5w30 HTO-06 spec formulation.








that answers that, thx...So Honda created the spec for a one off engine?..never used again by any mfg.


Sounds like, according to that Acura ServiceNews, Mobil 1 was the "only" oil to pass the HTO-06 test. The oil cap says "use only Mobil 1 or Equivalent" , so, if Mobil 1 was the "only" oil to pass the test, what "equivalent" could be used?

I know the different oil brands have been reformulated/tweaked since the HTO-06 test was first introduced, the Pennzoil synthetics and Quaker State synthetic have carried the HTO-06 on their labels for years now.

Reading the bulletin makes me curious, if "only" Mobil 1 passed the test, what "equivalent" oil was there?

 

[tig1]

M1 5-30 was the first oil to hold the HTO-06 cert. Other oils came along later.

 

[Virtus_Probi]

Originally Posted By: njohnson


Sounds like, according to that Acura ServiceNews, Mobil 1 was the "only" oil to pass the HTO-06 test. The oil cap says "use only Mobil 1 or Equivalent" , so, if Mobil 1 was the "only" oil to pass the test, what "equivalent" could be used?

I know the different oil brands have been reformulated/tweaked since the HTO-06 test was first introduced, the Pennzoil synthetics and Quaker State synthetic have carried the HTO-06 on their labels for years now.

Reading the bulletin makes me curious, if "only" Mobil 1 passed the test, what "equivalent" oil was there?


I think by law in the US, the manufacturer has to supply a maintenance item if they specify an exact brand and product...so, if Honda said you had to use M1 5W30, they would be forced to buy your oil.
By saying M1 5W30 or equivalent, even if they didn't have an equivalent to suggest at the time, maybe they got off the hook legally by not insisting on an exact oil. And, of course, they expected other makers to come up with "equivalent" oils in the future, so the wording on the cap made sense with that in mind, too.