Both behave the same when cold but the 5W30 is slightly more viscous at high (engine operating) temperature.
That is a personal choice as to Synthetic vs Conventional, if I'm not mistaken it calls for an SAE 5W30. If the engine has NO Major Oil leaks then I would use a Synthetic Motor Oil 5W30 or even a 0W30. Hope this Helps.
Ford recommends 5w30 to be used. There are no recommendations as far as synthetic vs conventional go.
Yes, but keep in mind that 5w30 thins out at higher temperatures vs. 10w30. i.e. 5w30 is better for cooler climates than 10w30 respectively. Theoretically you could see a mpg increase with the thinner oil comparatively, just don't sacrifice proper lubrication to save a few bucks. In my '95 2.5l it never lost any oil when I ran 10w30. When I tried 5w30 it did go through some. I have a 99k engine. the oil wasn't being burnt, so I wasn't losing it quickly, I just needed to top it off after a few months. I probably had to add 1/2 quart.
15w40 is thicker at all temps vs 10w30.
I am assuming you mean an enclosed heater. Oil stay hot longer & does not rust.
it is the additives they put in the oil
An SAE 5w30 full synthetic will provide excellent protection under all conditions. Look for the new API SN rating vs. the previous SM rating.
olive oil its healthier for u
36.2791% difference.
The main difference between cod liver oil and fish oil capsules is that cod liver oil contains the fat-soluble vitamins A and D. Because these vitamins are stored in the liver of the fish, they are found in cod liver oil, but not in fish oil capsules.
yield vs ytd
.30 vs. .355