CAFE and synthetic oil requirements.

[Merkava_4]

Originally Posted By: gregk24
For the bullet point on "Reduced wear on both cold start and high idle" they are probably referring to the fact that a 0w20 vs say a 10w30 or even a 5w30 will be quicker to flow up up the head and around the engine, thus reducing wear.


The 0W-20 may get there quicker, but will it lubricate as well as 10w30
when it gets there? That is the question. By the way, the ambient
temperature during the hypothetic cold start is 100*F.

 

[Jetronic]

Originally Posted By: Merkava_4
Originally Posted By: gregk24
For the bullet point on "Reduced wear on both cold start and high idle" they are probably referring to the fact that a 0w20 vs say a 10w30 or even a 5w30 will be quicker to flow up up the head and around the engine, thus reducing wear.


The 0W-20 may get there quicker, but will it lubricate as well as 10w30
when it gets there? That is the question. By the way, the ambient
temperature during the hypothetic cold start is 100*F.


I doubt that, as there's no high idle at those temps...

 

[UNC151]

Originally Posted By: Merkava_4
By the way, the ambient temperature during the hypothetic cold start is 100*F.
Where? In Africa or Australia? **Most** vehicles are "cold started" in the mornings (millions of commuters) and I know of very few places (almost none) in the US where it will be 100F between 6AM and 9AM.

 

[TFB1]

Originally Posted By: 2010_FX4
Originally Posted By: Merkava_4
By the way, the ambient temperature during the hypothetic cold start is 100*F.
Where? In Africa or Australia? **Most** vehicles are "cold started" in the mornings (millions of commuters) and I know of very few places (almost none) in the US where it will be 100F between 6AM and 9AM.


LOL

Hypothetically at 100*F the thinner the oil that's in service, the better lubrication/flow... In the real world(not at BITOG) at 100F, the difference between any on the shelf oils would be immeasurable...

 

[Kuato]

Originally Posted By: Shannow
They are a good couple of videos, and demonstrate clearly the results of choosing the wrong "W" grade for the ambient conditions.

Bump it up 5C (9F), and the 5W will behave like the 0W did at -35C...bring it to 0C, and the 0W, 5W, 10W, 15W will be indiscernible looking at time to flow at the camshaft.




Originally Posted By: TFB1
Originally Posted By: 2010_FX4
Originally Posted By: Merkava_4
By the way, the ambient temperature during the hypothetic cold start is 100*F.
Where? In Africa or Australia? **Most** vehicles are "cold started" in the mornings (millions of commuters) and I know of very few places (almost none) in the US where it will be 100F between 6AM and 9AM.


LOL

Hypothetically at 100*F the thinner the oil that's in service, the better lubrication/flow... In the real world(not at BITOG) at 100F, the difference between any on the shelf oils would be immeasurable...



I believe these posts have it.

If you're starting your vehicle in very cold conditions and taking short trips in the city, then 0w20 will arrive more quickly to your engine's internals, and save fuel while doing so.

The benefits are reduced and likely disappear as the temperatures climb higher and the length of trips increase.

 

[Merkava_4]

Originally Posted By: 2010_FX4
Where? In Africa or Australia?


California. It's 82*F in my garage right now and it'll
be up to 100*F in no time at all. It'll still be 100*F
in my garage at 8:30PM tonight. I sure as heck
don't need no 0W-20.

 

[chrisri]

Originally Posted By: Merkava_4
Originally Posted By: 2010_FX4
Where? In Africa or Australia?


California. It's 82*F in my garage right now and it'll
be up to 100*F in no time at all. It'll still be 100*F
in my garage at 8:30PM tonight. I sure as heck
don't need no 0W-20.

Did you consider installing engine pan cooler to take full advantages of 0w20 oils?

 

[Kamele0N]

 

[bbhero]

Merk, you need 0w-10

 

[JustinH]

Total cost of ownership guys.

My 2014 RAV4 takes 0w20.

Has a 10k service interval for oil changes. Price is $75 at the dealer for an oil change service (Steep I know).

If the interval was 3000 miles it would be 3 oil changes to my one.

If the interval was 5000 miles it would be 2 times the amount of oil change services to my one.

Even with the 75 dollar service, the total cost of ownership comes down over previous service specs.

The 0w20 oil can get there, and hold up for 10k no problem. It's 100 degrees in Texas I have zero worries about it going for 10k miles.

The Matrix we have is long out of any warranty, but I still abide by the 5k oil change intervals. I use dino mobil super and toyota filters. Comes to about 20 bucks and I do the service myself.

I could put mobil 1 in there and run it for 10k miles but I like something to do on the car every six months

 

[UNC151]

Originally Posted By: Merkava_4
Originally Posted By: 2010_FX4
Where? In Africa or Australia?
California. It's 82*F in my garage right now and it'll be up to 100*F in no time at all. It'll still be 100*F in my garage at 8:30PM tonight. I sure as heck don't need no 0W-20.
You only think that you do not need it. If somehow the inference about 100F is a way to say that 0W-20 cannot take the heat, nothing could be further from the truth.

 

[Stewie]

Originally Posted By: JustinH
Total cost of ownership guys.

My 2014 RAV4 takes 0w20.

Has a 10k service interval for oil changes. Price is $75 at the dealer for an oil change service (Steep I know).

If the interval was 3000 miles it would be 3 oil changes to my one.

If the interval was 5000 miles it would be 2 times the amount of oil change services to my one.

Even with the 75 dollar service, the total cost of ownership comes down over previous service specs.

The 0w20 oil can get there, and hold up for 10k no problem. It's 100 degrees in Texas I have zero worries about it going for 10k miles.

The Matrix we have is long out of any warranty, but I still abide by the 5k oil change intervals. I use dino mobil super and toyota filters. Comes to about 20 bucks and I do the service myself.

I could put mobil 1 in there and run it for 10k miles but I like something to do on the car every six months

TBH no 1 here goes to stealerships for oil changes.

Ban hammer for going to stealership

 

[JustinH]

My vehicle has Toyota care so it is free service for two years