Summer Vs. Winter
- Thread starter wn1998
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Are you asking this as a general question, or are you thinking of a specific synthetic 0W30 versus another specific synthetic 0W30 ?
It really depends on the engine & which synthetic oil you have in mind.
M1 0W-30 is "thinner" (56 cSt)@ 40C than M1 10W-30 (62 cSt) and obviously less at startup since it meets the 0W cold temp requirements.
M1 0W-30 could result in increased consumption over 10W-30 in some cases. Unless you are locked into an extended drain situation, M1 10W-30 would be a better all around warm to moderate temperature choice.
M1 0W-30 is "thinner" (56 cSt)@ 40C than M1 10W-30 (62 cSt) and obviously less at startup since it meets the 0W cold temp requirements.
M1 0W-30 could result in increased consumption over 10W-30 in some cases. Unless you are locked into an extended drain situation, M1 10W-30 would be a better all around warm to moderate temperature choice.
No , not until consumption becomes an issue , if ever .
Depends kinda on engine design though . A pushrod engine might not care where a small OH cammer would delight the 0w-30 Mobil . All 0w-30's are not created the same nor are the valves in all engines actuated the same . Variables , always variables
Not all 0W30 oils are the same!! M1 0W30 only has a HTHS of 2.9 wich is barley adequate in my opion.
Hey,
For nearly 6000 miles, note I said nearly I've been running M1 0w30SS in my Ranger for quite sometime. I used it through this past winter and most of the spring and summer(It takes me a while to put a good amount of miles on my truck) I've had zero problems with it and consumption is awesome!! In the 6000 miles my truck has been running 0w30 I'm pretty sure I've only had to add 1/2 quart because when I changed my M1 filter over to a Motorcraft FL-400S about 2000 miles ago. One man's opinion,,,AR
For nearly 6000 miles, note I said nearly I've been running M1 0w30SS in my Ranger for quite sometime. I used it through this past winter and most of the spring and summer(It takes me a while to put a good amount of miles on my truck) I've had zero problems with it and consumption is awesome!! In the 6000 miles my truck has been running 0w30 I'm pretty sure I've only had to add 1/2 quart because when I changed my M1 filter over to a Motorcraft FL-400S about 2000 miles ago. One man's opinion,,,AR
Since SOA recomends 5w30 dino or synth for your temp range and you get more protection with a synthetic why not just go with a 5w30 name brand synthetic like Mobil1 5w30? If you still have questions go to www.mobil1.com and ask. Ed
High Temp/High Shear "HTHS" numbers:
Mobil 1 0w-30: 2.99
Mobil 1 5w-30: 3.08
Mobil 1 10w-30: 3.17
Mobil 1 15w-50: 5.11
Pennzoil Syn 5w-50: 4.29
Switching to M-1 10w-30 in Summer would provide a modest increase in high temp protection. Dino 10w-30 oils typically have HTHS numbers from 3.0-3.2 (Citgo 3.0, Kendall 3.1, Pennzoil 3.2): All of the M-1 oils are in this same acceptable 3.0+ range.
Mobil 1 0w-30: 2.99
Mobil 1 5w-30: 3.08
Mobil 1 10w-30: 3.17
Mobil 1 15w-50: 5.11
Pennzoil Syn 5w-50: 4.29
Switching to M-1 10w-30 in Summer would provide a modest increase in high temp protection. Dino 10w-30 oils typically have HTHS numbers from 3.0-3.2 (Citgo 3.0, Kendall 3.1, Pennzoil 3.2): All of the M-1 oils are in this same acceptable 3.0+ range.
I have used synthetics since 24k on my jeep. I have used amsoil for 5k and M1 for about 6k. I have read many posts on here and decided I should run a 0w or 5w in the winter. I just currently bought all the 0w30 German Castrol I could find (18 quarts) and plan to use that in my 99 Jeep 2.5L. I heard jeeps like a 40wt oil but since this GC is a "heavier" 30 wt, I decided to go with it at 6 month, 7000 mile intervals with a oversized Napa Gold (1515) oil filter. What is the consenus on this move?
What about running Mobil1 5w30 all year?
The consumption issue with M1 0w-30 I believe is way overblown. I have had 0 consumption with it in my 99 Civic. I think consumption has more to do with the engine than the oil, especially when it comes to synthetics.
In general, I'll use the highest viscosity oil the owner's manual allows for the climate. Again, generally speaking, 10W-30 has fewer viscosity index improvers, so may have less tendency to shear to a lower viscosity. I'd use 10W-30 when the climate allows, and 5W-30 in the winter. I'd only use 0W-30 in frigid winter areas.
Ken
Ken
The 0w-30 by theory should give better MPG...a cost benefit...
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