It's OK here, and it works great as termite preventer. I
"scientifically" applied a few gallons to a section of fence with a
Wagner spray gun and no termites on that section after 15 years, they
went through the rest like a buzz saw. Neighbor thought I was running a
tattoo gun and came over to see what kind of rig I was running.
When I was a kid and we had to put in new fence posts, we routinely soaked
the bottom foot or so in old drain oil. Did that now I'd be in jail. And
no, I've never noticed anything after an oil change as far as performance.
But I seldom go as far as 4000 miles as I prepayed for 3000/3month "free"
lifetime oil/filter changes.
Ron in Idaho
no, but i've been to the tar pits and they're rank. my point is, while
i don't think it's a good idea to wantonly spread oil anywhere, nature
does a pretty good job of spreading that stuff about on its own.
What's rather amusing is that even companies like Exxon-Mobile have
never claimed, nor of course proven, an increase in MPG from synthetic
base stock oil. Of course you see claims all over the map from Amsoil's
Of course there are benefits to synthetic base stock oil in some
circumstances, such as extremely cold climates. For most people,
synthetic is simply throwing money away, other than the fact that it
makes them feel good by believing they are doing something good. It's
rather like a religion.
They don't? Look here: <http://www.mobiloil.com/USA-English/MotorOil /
Actually, if there is less friction, there is better fuel economy.
And to meet the oil standards set by the API, the oil has to save
fuel. And, the engine will last longer.
Overall, though, the savings are small and only a small percentage of
people will actually have their cars long enough to benefit from a
longer-lasting engine. Most people sell their cars well before this or
the cars have other problems, like that a crash, that ends the service
of the car.
They only claim the increased fuel economy for 0W20 and 0W30. Yeah,
since it's not possible to make a 0W20 or 0W30 with petroleum base
stock, they have a point there. But even for the "Advanced Fuel Economy"
products, they keep going back to "during warm up" every time they make
a claim of reduced friction or "saving" energy.
"During warm-up, Mobil 1 Advanced Fuel Economy flows faster because of
its lower viscosity to minimize metal to metal contact to reduce
friction and wear."
"During the warm up phase, the Mobil 1 fully synthetic formulation
because of its lower viscosity flows more easily through the oil pump,
requiring less energy to pump the oil to the critical engine parts."
But for their "regular" synthetic oil, 5W20 and 5W30, they make no
claims of increased fuel economy.
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