Originally Posted by GumbyJarvis
Originally Posted by sloinker
Originally Posted by CR94
Originally Posted by sloinker
... Back in the day Arco tried graphite and it failed due to it clogging up passages and caused engine failure. ...
That never happened or even threatened to happen when I used it for near 100k continuously.
I developed a rod knock in a vehicle using the Arco graphite. I haven't looked but remember ARCO pulling it because of too many lawsuits resulting in them buying too many engines. Maybe I'm mistaken.
https://www.csmonitor.com/1980/1008/100856.html
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We're getting kinda off topic, lol. But anyway to the OP, motor oil is just one factor in increasing MPGs and the results are usually so minimal you'll really not see a difference
Has to be some kind of huge decrease in viscosity, like from 20W-50 or 10W-40 to 5W-30 or 0W/5W-20. Then you'll see it. Otherwise, tends to be a placebo.
Ford saving something like 0.2% of an MPG may be overestimating that number is often cited as a reason 5W-20 oils are "Only to meet CAFE" well.. more convinced of other countries, and if they are, in fact,
different. Thought they also went to thinner recently but I hear of a lot of bump-ups to a 30 grade. I have to say, I am certainly re-thinking the thin oil game, after some recent possible close calls with some of my vehicles. They seem to like a 30 better. Hmmm. Now, of course, if they say 5W-30 on the cap (and they do) then one has to wonder if there is relation, or if there was even problem.. but fuel economy is more about tire inflation and how fast you drive.
Oil may be optional, be a rebel.
And they have the Energy Conserving Starburst, so.