Oil Quiz.
- Thread starter Chris-St Louis
- Start date
sven said:
I saw that, but aren't I looking for the A3/B3 (or A3/B4, or C3) ratings that Chris was talking about?
what does the E7 mean?
The E rating is for Heacy duty Diesels.
http://www.acea.be/images/uploads/files/20090105_081211_ACEA_Oil_Sequences_Final.pdf
As you see, on page 13 this oil does have a sheer of at least 3.5. But, compare the ZDDP levels with a a and c rated oils. The E has higher tolerance, what your oil has I dont know, but the E ratings allow quit e abit, so I would be concerned about Cat and o2 life.
BUt, the engine will like it!
http://www.acea.be/images/uploads/files/20090105_081211_ACEA_Oil_Sequences_Final.pdf
As you see, on page 13 this oil does have a sheer of at least 3.5. But, compare the ZDDP levels with a a and c rated oils. The E has higher tolerance, what your oil has I dont know, but the E ratings allow quit e abit, so I would be concerned about Cat and o2 life.
BUt, the engine will like it!
Chris-St Louis said:The E rating is for Heacy duty Diesels.
http://www.acea.be/images/uploads/files/20090105_081211_ACEA_Oil_Sequences_Final.pdf
As you see, on page 13 this oil does have a sheer of at least 3.5. But, compare the ZDDP levels with a a and c rated oils. The E has higher tolerance, what your oil has I dont know, but the E ratings allow quit e abit, so I would be concerned about Cat and o2 life.
BUt, the engine will like it!
Weird, thats the only Rotella I saw in a 15w40. I'll call around and see if there is a 15w40 that isn't heavy duty.
And as far as this not being a "winter oil," what temps are we talking about? It gets down in the teens here at night, so what should i be concerned about?
Dont get me wrong, its not the end of the world. I'm not sure how much is too much ZDDP. So, I wanted to find out and I'm gettin gthis report.
http://www.sae.org/technical/papers/2007-01-4107
Then I shoudl know how much is too much.
As far as temp, Battery/starter strenth will be a factor. I havent seen any reports of damge from too thick. from what I know and read, as long as the engine can spin fast enough to start, then its ok. Dont beat on it when the engine is really cold, but other then that....
As far as ZDDP, the latest and greatest I've read is using Titanium, which is cat friendly.
http://www.azonano.com/news.asp?newsID=6907
So far one company is making it, I dont know about aval or price, or if its voodoo majic yet.
http://www.conocophillipslubricants...ercial_engine_oils/Ken Super-D XA TDS Web.pdf
http://www.jobbersworld.com/november 18 2008.htm
It does have Zinc, but no Phosurious...Should be cat safe, with a great sheer rating.
http://www.sae.org/technical/papers/2007-01-4107
Then I shoudl know how much is too much.
As far as temp, Battery/starter strenth will be a factor. I havent seen any reports of damge from too thick. from what I know and read, as long as the engine can spin fast enough to start, then its ok. Dont beat on it when the engine is really cold, but other then that....
As far as ZDDP, the latest and greatest I've read is using Titanium, which is cat friendly.
http://www.azonano.com/news.asp?newsID=6907
So far one company is making it, I dont know about aval or price, or if its voodoo majic yet.
http://www.conocophillipslubricants...ercial_engine_oils/Ken Super-D XA TDS Web.pdf
http://www.jobbersworld.com/november 18 2008.htm
It does have Zinc, but no Phosurious...Should be cat safe, with a great sheer rating.
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Wow, that made my head spin. The report used 6 New york Taxi cabs (2003-4.6l) And used a low Phosphorous oil (742PPM) and a High Phos oil (776 ppm) in 3 of each.
Notice what separtes high and low is 74PPM! Wow!
The test did NOT show a clogging of the cats, but a coating of phos that made them unable to convert Co and NoX by a quite a bit.
Nox increased by 10% and took on average 5 seconds longer to warm up. and in one cab, 40% more Co then the least violated cab.
Even in low oil burning caps, the higher ZDDP oils did contaminate the cats more then the lower ones. On average 46%!
Interesting reading, I'm still getting a grasp on it all. If you live in a area that does not emission test, I cannot see this being a problem, as the cats did not clog.
Emission tested areas might want to look a little closer at it.
Notice what separtes high and low is 74PPM! Wow!
The test did NOT show a clogging of the cats, but a coating of phos that made them unable to convert Co and NoX by a quite a bit.
Nox increased by 10% and took on average 5 seconds longer to warm up. and in one cab, 40% more Co then the least violated cab.
Even in low oil burning caps, the higher ZDDP oils did contaminate the cats more then the lower ones. On average 46%!
Interesting reading, I'm still getting a grasp on it all. If you live in a area that does not emission test, I cannot see this being a problem, as the cats did not clog.
Emission tested areas might want to look a little closer at it.
Chris-St Louis said:
Man, all this stuff is going over the top of my head...
I changed the oil at work today, so it's in thwe truck now. Should I look for a non heavy duty Rotella 15w40? We do have smog testing here for registration.
DiscoveryXD said:Man, all this stuff is going over the top of my head...
I changed the oil at work today, so it's in thwe truck now. Should I look for a non heavy duty Rotella 15w40? We do have smog testing here for registration.
I'm not sure yet. The study was done over 100,000 miles. For sure, the cats did suffer efficiency, but I'm trying to figure if that woudl be enough for it to fail a emission test.
Rovers run on the rich side as it is, so they might need all the help they can get. In the real world (THis forum) there are people who have used ZDDP rich Rotella the entire engines life and still passed emission tests.
If one wanted to err on the side of caution, a ACEA a3/b3 oil is cat safe, yet expensive and in some area tough to get. I'm not convinced that the damage, while certain, is a cause of concern.
I wouldnt worry yet, as we all know there are "Lab" results and "real world"Results. This is a tough paper to read.
ok, I called around where I live and it seems that the only 15w40 stores carry is this "heavy Duty" stuff.
Dont loose sleep yet. I dont know if this comtamination is manageable. I'm reading another paper from Mazda about in the feild cat contamination that migh tyet more info.
I can tell you Phos does contaminate cats reducing their effectiveness. This is certain.
How much is too much, or how long, or other specidics elude me right now. In fact, it may be time for a survey...
I can tell you Phos does contaminate cats reducing their effectiveness. This is certain.
How much is too much, or how long, or other specidics elude me right now. In fact, it may be time for a survey...
We ran Rotella in every engine our shop had: Ford f-250s, Ford f-700s, Detroit Diesels (4-53, 4-53t, 3-53, 6v71), Deutz diesels, Bean water pumps, etc. The pickups routinely ran over 100,000 miles. Never had a cat failure from that. They'd rattle themselves apart from being off-road though. Our drillers had a bad habit of dropping the exhaust behind the cat and running a pipe through the cat honeycomb if it collapsed on them and the truck was losing power. They didn't always tell us this until we were servicing them for emisions. :banghead:
Picked up a couple gallons of Rotella at the local Napa today for $15 each. When I was there I recalled some info on Amsoil so I checked the prices on the stuff they cared. They had 2.5 gallons of 15w-40 syn diesel / marine oil for $80. It meets the ACEA A3/B3. Even though it says diesel/marine, is it still alright? At $8/qt it's still too rich for me but others might be interested.
I went ahead and bought the Rotella 5W-40 synthetic. It has an HTHS rating of 4.2. I don't have to worry about emissions testing so it should work fine for me.