I think I will take a trip this Spring up to Sherbrooke Quebec where, according to the Imperial Oil Website, I should be able to find an Esso Bulk Station.quote:
Originally posted by Cyprs:
Possibly lobby EXXON/MOBIL to get it in circulation down there, 300 million Americans is a large market, Esso/Exxon/Mobil are loosing a big market share there.
Cyprs
WalMart has the 0w40 for $22 for a 4L jug. Esso sells it for around $15.quote:
Originally posted by Minou:
I checked twice recently at a local Wal-Mart and haven't seen any XD-3 on the shelf.
Would have been fun to compare what they ask for it, compare to the Esso bulk station?
I havn't done a VOA, but according to my used oil analysis, XD3 has a truckload of calcium, phosperous and zinc, but no magnesium, boron, moly, etc.quote:
It would be interesting to see a VOA posted by by the Esso XD-3, 0w30 users/fan club.
quote:
1. The temperature for an HTHS measurement is done at 150C or 302 F, which is the average peak temperature likely to be encountered in a bearing.
2. The oil is mechanically sheared at a rate of 1 x10^6 shearing operations/second.
3. Minimum Oil Film Thickness measurements (MOFT) of operating engines did not correleate well with actual wear in service. A method was devised by which the oil temperature would be elevated to worst case and sheared to determine the optimum viscosity which better correlated with wear.
Three Exxon Researchers found that a minimum HTHS of about 2.8 mPA.s was the MINIMUM HTHS viscosity needed for normal wear, with the higher the HTHS being better for minimum wear. IN general, the higher the viscosity, the greater the HTHS.
For example, in a fleet of taxicabs using a GM 4.3L V6 engine, if the HTHS was 2.35, the startup film was 0.097um and 2.56 um at running; if the HTHS was 2.98, cP, the Startup oil film thickness was 1.231 um while the running film thickness was 3.22 um.
In Dynomometer wear tests using four GM 3.8L engines, the wear mass of a connecting rod bearing was as follows:
HTHS 2.1
mass loss (gm.) - 190
HTHS 3.2
mass loss (gm.) - 28
For "mains" bearings:
HTHS 2.1
mass loss (gm.) - 150
HTHS 3.2
mass loss (gm.) - 40
A jump in HTHS by about +1.5 results in approximately 1/5 the wear. Now this relationship is not linear and flattens as one nears a 40+ weight oil.
I should also mention that this test showed little differences in wear between a high quality 5W20 and a 10W30 for oils of close HTHS. For example, The average wear of one of the 3.8L V6's showed a total wear of the Connecting Rod bearings as 48.4 grams for the 5W20 verses 44.3 grams for the 10W30. For a 10W40 oil, the wear was 39 grams!!!
[Mola's comment: I think this test verifies my earlier comments that most daily driver engines can use any oil from a high quality 5W20 to a 15W40 fleet oil.]
Summary: It was found that HTHS correlates better with wear values found in actual oil analysis and actual tear-down measurements than does measuring the oil film thickness in situ.
I posted a VOA of XD3 0w40 some time ago, tho' under a different user name (stopped following this board for a while, then re-registered). Scroll down a bit and you will find a comparison with Delvac 1 and M1. I suspect the additive package for the 0w30 version is similar. I use 0w40 in my '93 V6 toyota pickup now. As soon as the car (2L turbo) is off warranty, I will us it in that too (XD3 doesn't carry the A3 rating called for in the manual).quote:
I havn't done a VOA, but according to my used oil analysis, XD3 has a truckload of calcium, phosperous and zinc, but no magnesium, boron, moly, etc. [/QB]quote:
It would be interesting to see a VOA posted by by the Esso XD-3, 0w30 users/fan club.
They are marketed for deisels I believe. I'd run it if we had it here.quote:
Why isn't ACEA A3 listed as one of the specs? It's the only thing holding me back from trying this oil.....
Does not this 'brochure'quote:
Originally posted by olympic:
The entire XD3 line aren't listed as energy concerving or API approved.
I'm not so sure:quote:
Originally posted by olympic:
b) XD3 is not approved for any new car warranty
But Starburst and API should/would take a backseat as the use of 0w30 is written up in this GM car's owner's manual as an acceptable engine oil....unless there are 0W-30s with API and Starburst.quote:
Originally posted by hannaco:
True, but GM is expecting to see the API donut and starburst. Neither are on the label of XD-3.
Now this is good news.quote:
Originally posted by jaj:
You're looking for (from the Esso website):
Smith Agency
17546 - 57 Avenue,
Surrey (Cloverdale)
604-574-7404 for sales desk
Good hunting!
JJ