My Rotella T6 cold start experience...

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Where I live in NW Ontario last night it was -30C and I've got Delvac 1 ESP 0W40 and my diesel will fire up without being plugged in and it cranks over and fires near instantly where with 15W40 it wouldn't start. It barely started at -15C with the 15W40. Throughout most of January here the nights will be between -25 and -40C so the Delvac will get a good test to see how it stands up to the cold. This is my first year running it. For the life of the motor the extra money spent on the oil is worth it. As well as knowing it will start.
 
Originally Posted By: Jim Allen
Originally Posted By: CourierDriver

guys ,,,u all are splitting hairs and shaven whiskers,,run the 5w40 and have a nice day,,we or me aint impressed,,way to much info............lol IMHO and so on ,,,,sky


With all due respect...what an ignorant statement!

How do you make choices without looking at the details and understanding the differences? There are a lot of people reading that may be in the sponge stage of learning oil, so this discussion is a teachable moment. If you disagree with any of the facts, make your own case to dispute them. Your statement would indicate all you did was to follow someone else's instructions without any investigation of your own and that you expect everyone else to follow yours the same way. Based on your other posts, I don't think that's true but that's how it came across to me this time.
I do apologize for any references that insulted anyone who read my statement, I to read oil data and the like and science and an in depth study is truly worth it to make an intelligent and informed decision, u are correct sir,,an in depth study is required to select the oil one needs for his or her automobile engine. I do stand corrected for any wrong doing and therefore, anyone who wants to should study all the oil data available.
 
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Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.


Excellent point, Steve.

But only valid if he extends his OCI. Unfortunately, since most people don't extend, the "value" is never realized. In a and properly-operating Dmax, most conventional oils have proven to be reliable and effective up to 10k miles, with excellent UOA results. Presuming the T6 costs 60% more than the T5, he would have to push the T6 OCI out to perhaps 16k+ miles to get his ROI. Most people simply cannot keep their itchy wrench fingers off the tools that long.

I didn't broach the extended OCI topic because this thread was about the tactile perceptions of the cold start cranking. My point is that the T5 in 10w30 will perform the same as the T6 5w-40 for far less initial investment.
 
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Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.
Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.
this is one of the best answers or data yet,,I also us this oil,,PS I also read over and over the Main Menu of BITOG , lots of good data there, especially OIl 101 chapters. good stuff.IMHO
 
Originally Posted By: CourierDriver
Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.
Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.
this is one of the best answers or data yet,,I also us this oil,,PS I also read over and over the Main Menu of BITOG , lots of good data there, especially OIl 101 chapters. good stuff.IMHO

Not really(no offense Steve)every one knows on here or at least they should that IF using a synthetic a wise move is to go extended to re coop money spent.
 
Not a big diesel engine....but same experience.....

Up until a month ago, I had 15w40 Delvac in my BMW K1200LT motorcycle. I made a decision to dump it and pour in T6. Even at 30 degrees, the 15w40 put quiet a bit of strain on the starter motor....but yesterday at 25 degrees, the bike started right up with little effort....HUGE difference!!!

T6 will be my winter fill for my K-Bike.

I don't think I would have any issue using T6 year around, except I snagged 12 quarts of Mobil 1 15w50 at the PepBoys sale for $4 a quart and will be my summer fill.
 
Originally Posted By: daman
Originally Posted By: CourierDriver
Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.
Originally Posted By: Steve S
I would go with the 5w-40 all year if extended oil change intervals are done. The 5w-40 will hold up for the extended oil change intervals. Then there will be a value for the $$$$ spent.
this is one of the best answers or data yet,,I also us this oil,,PS I also read over and over the Main Menu of BITOG , lots of good data there, especially OIl 101 chapters. good stuff.IMHO

Not really(no offense Steve)every one knows on here or at least they should that IF using a synthetic a wise move is to go extended to re coop money spent.
No offence taken but looking at the posted used oil analysis I wouldn't call most of the syn oil changes extended.
 
Originally Posted By: m37charlie
Slightly OT:
http://www.wetaskiwincoop.com/Petroleum/PetroFacts/dmo_sl_advanced_specs.pdf
IMHO the best 0W40 in North America for pre 07 diesels (unless they are passenger car derived and can use Mobil 1 0W40). Although the 57.8 cSt 40C vis is a typo.
But it is only sold in Co-Op stores in Alberta, Saskatchewan and Manitoba.


Guaranteed that Co-Op does not make that stuff.
It comes from one of the big 3 in Canada: Petro-Canada, Esso, or Shell.
You can buy that type of oil from any of the big 3 distributors in Western Canada.
 
I have been using T6 for about a year now i think. It is the only oil that goes in my Subaru. I use it year round and will continue to do so for the life of the car. I used to use PP but it is HARD finding the 5w-40 European. i have to order it and it get's real expensive. The T6 is everywhere around me and the price is good. I only use 5w-40 in the Subaru. Love the protection for all the driving I do.
 
Originally Posted By: bigbird_1
Originally Posted By: m37charlie
Slightly OT:
http://www.wetaskiwincoop.com/Petroleum/PetroFacts/dmo_sl_advanced_specs.pdf
IMHO the best 0W40 in North America for pre 07 diesels (unless they are passenger car derived and can use Mobil 1 0W40). Although the 57.8 cSt 40C vis is a typo.
But it is only sold in Co-Op stores in Alberta, Saskatchewan and Manitoba.


Guaranteed that Co-Op does not make that stuff.
It comes from one of the big 3 in Canada: Petro-Canada, Esso, or Shell.
You can buy that type of oil from any of the big 3 distributors in Western Canada.


Cyprs has more insight, but IIRC, it is an Esso/XM basestock w/ CO-OP's own additive pack.
 
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