Don't some/ most/ all engines have piston squirters that try to remove heat from the bottoms of pistons, so during the warm up cycle the oil gets hotter faster than the engine block? Ignore oil-to-water coolers for this hypothesis.
Most turbo or high power engines have squirters, the rest get some oil flinged up there by the crankshaft
Oil is the primary coolant in an engine being sprayed on the back of the pistons.
Sadly a good percentage of cars are going down the road with those oil levels.If low is good, wouldn’t lower be better?
Run it a quart below the minimum and enjoy even faster warm up times!
I find that leaving it in 3rd gear instead of shifting to 4th once hitting 35 around town makes the car warm up much faster.
How much margin is there taking into.account that a vehicle is is not stationary while being driven? Some engines will suffer oil starvation even with a full sump under some driving conditions.
I trust it for running the engine in a stationary vehicle.
Opinions and beliefs do not have to align with facts. The OP did not specify if he wanted opinions or facts. I often ask a question because I want to see what people believe not what they know. It can be interesting.
They say "between" the max and min marks. I interpret that as "above min."
I agree but due to liability issues it's unlikely that the manufacturer's min and max marks will be grossly off. I woukd expect there to be a safety margin they don't disclose. It's a rabbit hole.
When you are operating at the bare minimum margin a lot of scenarios can get you below the minimum margin.
Some engines do not sound great if they are started up with the oil.level near minimum. There can be increased valve clatter and timing chain noise. What about splash lubrication if the oil level is at minimum? Is it optimal, and if it's not is that a design flaw or just unavoidable?
Affirmative!... when you have a French engine.
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You may or may not be aware of this but the oil level is not actually low until it reaches the low/add/minimum mark. Many people think the level is low if it's not right at the full mark which is a bit silly unless your engine has other problems. And many people do the same thing you are doing, whatever spins your beanie -- it's certainly not hurting anything but also it's not necessary... unless your engine has other problems.
It should heat up faster because there is a smaller mass of oil to be brought up to a certain temperature; by some fast calculations it takes 100+ watts of energy to bring 1L/qt. of oil from ambient to operating temperature.
Will it overheat? The oil cooling capacity should be the same because, the same amount of oil will flow and get in contact with the engine, there is just a smaller puddle in the oil pan. Thermal inertia is definitely lower.
OCI will have to be shorter, but it would also be cheaper.
This seems like a really good idea for a short-triper. Am I missing something?
In my case; my old Honda had a min-max of 2.5-3.5 and i've always just bought and poured in 3 bottles of whatever was on sale @ 6 month OCI (2-6k miles). The engine is tip-top, but the car is totaled. Now, my new Toyota has a min-max of 2.7-4.2 sooo I could do 3 bottles (which feels low) or I could do 4 bottles at ?... 6 month...1year... 6k miles... 10k miles... I don't know.
