427
What would you use?
- Thread starter techie
- Start date
- Status
a -40 degree borderline pumping capability translates to better cold weather performance even at more reasonable temperatures.
Mobil sub zero 0w-20,great extreme oil,from what i gather its different than regular Mobil Ow-20 sold in lower states,for a note I knew a person in northen canada,he used half 5w30 Castrol Syntec and half Marvel Mystery oil in super cold,he never did have any problems Im told..BL
- Joined
- Sep 28, 2002
- Messages
- 39,793
Not necessarily true.
but not necessarily false either.
Mr. Spock would like to have a talk with you.
Since you're already on the border, you need to truck over to the nearest Esso Canada bulk depot, pick up some EssoExtra XD-3 0w30 (or 0w40 if needed.)
.
.
doc
.
.
doc
- Joined
- Sep 28, 2002
- Messages
- 39,793
Fascinating
Don't you have some comparative cP figures to offer our esteemed androbot, 427ZO6??
Don't you have some comparative cP figures to offer our esteemed androbot, 427ZO6??
I could dig some up, but I don't table dance for Amsoil trolls.
However, to retort to a statement that is not necessarily true with "it is not necessarily false either" is redundant and adds nothing.
In any event, to get the extreme cold weather performance that 'boy wonder' talks about, that particular oil gives up volatility performance. Notice how they measure it under DIN 51581 at 8.6% which would roughly translate into 15% under ASTM D-5800. So next time someone talks about oxidative thickening with this oil be aware they're blowing smoke up your keister.
It would be nice if the oil companies would publish graphs that would measure the viscosity for each and every possible temperature variation but this information is hard to get a hold of.
The flashpoint of a synthetic 0w30 is 226 degrees celsius and the flashpoint of a 5w20 synthetic is 228 degrees celsius which is not a significant diference.
My main point has been that for years mechanics have been saying that the outstanding low pour points and high flash points of synthetic lubricants are overkill. However the pour point is the point where the oil turns solid and flash point is where the oil vaporizes. The actual temperature range of the synthetic oil is a much more narrow range which is not overkill at all.
Too many mechanics buy an oil with a pour point of -20 degrees farenheight and think this is plenty good enough for sub zero temperatures and fail to realize that this oil barely even pumps at 0 degrees farenheight.
Too many mechanics buy an oil with a pour point of -20 degrees farenheight and think this is plenty good enough for sub zero temperatures and fail to realize that this oil barely even pumps at 0 degrees farenheight.
Mobil 1 0w30 228C
http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil1_0W-30.asp
It seems like everytime you say something about synthetic 0w30 motor oil, you are specifically talking about Amsoil 2000 0w-30. Don't you see how this could be very misleading? And what 5w-20 motor oil are you referring to which has a flashpoint of 228C?
I can assure you they do not all have 228C FP's.
http://home.comcast.net/~dsmphotos/5w-20synpds.jpg
[ July 30, 2006, 08:48 PM: Message edited by: sxg6 ]
And according to your chart some of these petroleum 5w20 oils have low flash points of less than 400 degrees farenheight. Chevron claims that its isosyn rivals a synthetic with a 460 F flashpoint but its pour point is only -27 f which means its borderline pumping temperature is only -7 F
I put a question mark next to those oils on purpose, I dont trust that those are the true flashpoints.
For example, i highly doubt the flashpoint of all these oils is 392f
http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil_Clean_5000.asp
For example, i highly doubt the flashpoint of all these oils is 392f
http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil_Clean_5000.asp
It's farenheit. And all 5wXX oils are tested for viscosity at -30 celsius (-22 farenheit.)
You are giving Amsoil a bad name.
Ken
You are giving Amsoil a bad name.
Ken
Sorry, Fahrenheit.
Ken
Ken
Amsoil always has had a bad name but then again so does Harley Davidson. When Amsoil was first introduced it got a bad name because it was a 100 percent synthetic motor oil so the mechanics thought because it was a synthetic it was no good and it voided warranties.
Today few mechanics would tell a customer synthetic oils voids warranties but mechanics say that Amsoil lacks any credibility because of the 25,000 mile oil change interval. However even this is changing because now Mobil 1 EP recommends a 15,000 mile oil change interval so extended drain intervals are becomming more and more accepted.
I think that in the future Amsoil will be regarded more as an outlaw oil rather than a bad oil and it will get a lot of respect even from the mechanics who choose not to use it.
Today few mechanics would tell a customer synthetic oils voids warranties but mechanics say that Amsoil lacks any credibility because of the 25,000 mile oil change interval. However even this is changing because now Mobil 1 EP recommends a 15,000 mile oil change interval so extended drain intervals are becomming more and more accepted.
I think that in the future Amsoil will be regarded more as an outlaw oil rather than a bad oil and it will get a lot of respect even from the mechanics who choose not to use it.
Indeed the 4 ball wear scar tests are used to give Amsoil a competitive advantage over its competition. However Amsoil has payed heavily for this distinction because many Amsoil products are not API certified because they exceed the ZDP limits.
- Status
Similar threads
