Big improvement after first oil change?

[telenerd]

I noticed my engine runs smoother and less tick after switching from Motor craft Blend Oil to Valvoline Full Synthetic Extended Protection.

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[WT205]

I noticed my engine runs smoother and less tick after switching from Motor craft Blend Oil to Valvoline Full Synthetic Extended Protection.

Mine is noticeably quieter at startup for sure. These 2.7s are noisy so any improvement sounds significant.

 

[HoosierDaddy]

While the friction may be reduced somewhat due to break-in which **may** lead to an MPG improvement there is NO oil on the planet that is going to increase MPG more than a few tenths AT BEST.

Always hilarious to see claims of 3 or 4 MPG improvements based upon an oil change when the only thing that **COULD BE** different is a slight move up or down with viscosity with a given range for a given viscosity between brands.

In this case, for 5W-30, the range is 9.3 to 12.5 cSt @ 100°C and there is not enough viscosity change within that range to enable any substantial increase in MPG.

Last, but not least, there are no "controls" to maintain consistency for testing MPG within oil brands while driving--your right foot, a headwind, increased loading, and a hundred other variables exist that prevent a valid test.

My belief is it has zero to do with oil.
I attribute it to "break in programming" in the tune. Lol.
That or placebo effect, but I really like the programming conspiracy!

 

[Bill K]

Imagine how it will be after you change out the air in all your tires. That factory air is always of a lower grade.

But what about that nitrogen in the tires? It seemed like such a good deal from the dealer

 

[Rydfree]

But what about that nitrogen in the tires? It seemed like such a good deal from the dealer

They really should be putting Helium in the tires to save weight. Nitrogen and oxygen are heavier

 

[Canyon Coolers]

Placebo. I changed mine at 1K and again at 2K to get the wear metals out. No difference in power or MPG.

I like your comment and your truth is no doubt accurate, but I do disagree. There is some break in on atleast some engines. Tolerances always have well, variences. The OP may have a tighter engine in any number of 100's of rotating parts or surfaces averaged out over the entire engine. A numbers game.

 

[CarbonSteel]

I like your comment and your truth is no doubt accurate, but I do disagree. There is some break in on atleast some engines. Tolerances always have well, variences. The OP may have a tighter engine in any number of 100's of rotating parts or surfaces averaged out over the entire engine. A numbers game.

See my later post...and no matter what...there is NO way that an increase of 3-4MPG happens due to an oil change UNLESS something is seriously wrong with the engine.

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