Now, pair that with a 6.0 that is known to be picky about the quality of the lubricating oil -- because it uses oil to fire the fuel injectors....

You know why I am a conservative SOB.


There is just way too much we don't understand about biodiesel in the laboratory setting (nearly pure stuff that is high quality).

We know next to nothing about the stuff sold out there on the street as biodiesel in terms of what is really in it, whether it is actually tested to meet spec, etc.

 

Long story short... My 6.0 tranny bell housing was bone dry until about 2 months of running rottella synthetic and it started dripping oil from the bell housing. It was diagosed with a bedplate leak. I switched back to standard conventional oil now running 6k mile oil change intervals and no more drips and only a damp tranny bell housing.

No more synthetics for me in the 6.0 psd!

 

That falls under the "it ain't broke...."

 

Nothing wrong with that!

 

There is got to be some joke that can be made about insisting on top-of-the-line Motorcraft original filters, top-of-the-line synth / dino CJ-4 oils, 5,000 mile or less oil changes, then filling up at whatever filling station on the way that carries biodiesel...

 

Well I switched to synthetic oil last October due to stiction causing the romps and no power during cold operation in which the synthetic oil did cure, but created a much bigger problem IMO.

Hide sight 20/20, I just should of took it to Ford and get the inductive heating flash to fix the root cause of the problem!

 

Hypocritical Syndrone...

 

Hey - I just got the latest flash (May), and it include the infamous EOT/ECT monitor that turns on the wrench light if it exceeds specs.

Do it.

It will be the best $100 you ever spent.

 

Well, it could be a coincident. When my truck was new it had a warped bedplate, ant Ford replaced it with a short block. The short block had a leaking bedplate too which the tech fixed. Been dry ever since.

 

No way I am going dry!

 

I just picked up 4 gall of T6 yesterday at Wally World....thanks. I was happy to find the T6 in stock there....My WalMart hasn't had ANY Rotella 5W40 in quite a while! And THIS is just an added bonus! Thanks again, Rick!

 

I'm on my second short block due to oil leaks also. The second block ran bone dry up for about 60k miles. Switched to synthetic and the leak occurred (could be coincidence) and switched back to convential and the leak has deffitely subsided, which is not coincidental at all.

I warn people when switching to synthetics in these engines based on my experience with oil leaks, but ultimely the choice is yours.

 

I downloaded this and read it.... several "beefs" with the study:

1) Most of the comparisons were done with API class CD engine oil. Uhhhhhhhhhhhhhh.... Say WHAT???

In the US, you generally cannot buy class CD oil any more without significant lead time and LARGE bulk buy directly from a distributor or manufacturer. CJ-4 has 100% replaced anything less in the retail market. Even the straight-weight oils have gone to CH spec.

2) Their consideration of "biodiesel" extends to the use of unrefined, unfiltered, untreated-in-any-way used cooking oil. IMHO, anyone who uses that deserves what they get. I'll give them some points on the increased boiling point of biodiesel, but by the same token, they don't completely separate the two fuel stocks, and there are significant differences between the two.

Note that the study was done well before the ASTM standard for biodiesel was introduced.

Also note that the study was done with many countries who do not subsribe to USEPA2010/EuroV emissions standards, and the CK oil spec is specifically designed to deal with those emissions standards.

I wonder what would be the end effect of marketing older oils to the countries who do not require (yet) the additional "benefits" of newer engine oils, and restricting the newer ones to the countries who need them.

Use of a 2010-spec oil in a country where the fuel is still 2000ppm sulfur is just ASKING for trouble, since the 2010-spec oils are specifically designed to work with 15ppm fuels, and cannot handle (by the manufacturer's own admissions) the higher fuel sulfur levels.

-blaine

 

I got it back in March when my truck paid$$$ a visit to the shop.

 

Your points are completely valid --- I listed that study because it had a very good set of slides on how testing is done --- not for its North American Relevant Content.



So, for that, please see this paper:



http://www1.eere.energy.gov/vehicles...uterwasser.pdf


Oh... the author is a known heavy weight in the biz.