Someone p*ssed on your grits this morning or sumthin'?
Welcome to my Ignore List.

 

Here's the problem with your statement, you acknowledge that there is very little if any difference in friction. You state that its an element of flow rate and one oils ability to transfer heat better than others. The heat being generated hasn't changed, combustion is the same and friction is the same- In order to dissipate the heat it would have to transfer it to the cooling fins of the motor. Would this make the external temp of the engine cooler? I don't think so. There is lots of "information" out there generated by people trying to sell you a $10 quart of oil but very little fact to back it up.

Use whatever makes you smile, but you will get the same mileage out of your motor whether you use $10 magic oil or auto store off brand dino.

 

Litigate??

Amsoil is the ONLY oil that offers a stand behind warranty. Ask Redline and HD oil what there postion is on that? I would of pulled a sample ESPECIALLY if the mechanic was telling you it was the oil.

 

Synthetic oil whatever the brand should not be all burned up after 1500 miles. In fact it should never burn, just get dirty from carbon.

 

Just to let you know and not to argue, I teach thermodynamics at the university level and I am not trying to impress anyone with my background. Just trying to put out facts and not myths. Yes the heat is transferred through the cooling fins and not only the fins but all the solid parts of the engine, primary and transmission, as stated in the equation Q-UAdeltaT. The U is the property of the metal or other solid and its ability to transfer heat and the A is the area of the material to transfer the heat. But, unless you change the jugs or something, this remains constant. It is actually why the jugs have fins to increase the heat transfer surface area. Also very slight changes in friction can cause significant heat reduction. Since HD engines are oil/air cooled, the oil can have an effect on engine temperatures. The reason an oil cooler works is the increase in surface area along with a slight increase in the amount of oil in the system. I can also tell you that a synthetic is always going to be better for an engine. Dino can be fine but it needs to be monitored for breakdown and will usually not go as many miles as synthetic. The other quality of synthetic is its ability to withstand more heat with less evaporation and less breakdown. Dino is fine, if changed at the correct interval, synthetic is better and will handle the heat better. Use a good oil and change at the correct interval and you will be fine, but different fluids/oil will change the oil/engine temperature. Same principle as products like water wetter for water cooled engines and other additives that change the properties of the water in the system. I don't care whether people use Dino or Synthetic, they both will work, but I will always use synthetic in the engine and tranny. And different oils will cause changes in engine temp, probably not 40 degrees, but 5 - 10 degrees would be within the realm of reasonable changes. So as you said, use whatever makes you smile.

 

EXACTLY!

Just think how crappy a petro oil would of held up! Synthetic oil no matter what brand is better than that garbage. If the mechanic is that old school might consider finding a fresh mechanic.

 

Fact:

A jet engine generates massive heat in the bearings, if a petroleum oil was used the motor would seize in minutes. Hence, they ONLY use a synthetic oil and was the true birth of synthetics. Amsoil was the first to use this technology in autos and caught all kinds of grief for it. Now all the companies are jumping on the band wagon to say "NEW synthetics"

 

The last line in your statement here is total BS oil man! I don't care what you run in your engine, But you should respect others on this forum, specially new members and not post this ignorant chit about oil. It has without a doubt been proven in many test, Synthetic Motor oils reduce friction, thus reducing heat, wear and holds it's viscosity longer.(no I'm not looking up the data for you) Open your closed mind or give people a break and don't post utter BS about engine oil. If a HD owner is going to run Dino oil, change it every 3K miles. They will still get more engine wear than with synthetic. I read where guy's don't like the engine noise with Synthetic, so they switch to HD 360 or some other heavy Dino oil. That only puts more load on the starter during startup and the engine while running. The results will be shorter engine life. If we were talking water cooled engines, I would be more inclined to partly agree with some of your advise, But we are talking an air cooled engine that runs really hot in part due to EPA standards.

 

It has always been an argument when it comes to dino oil compared to synthetics.A lot of people just have a hard time spending a few extra bucks,or they are too old school,or they heard from the grapevine that synthetics aren't any better,or they do not believe what they read and probably never read about it anyway.No matter their lose our gain.I started using synthetics back in the 70's and have ever since.Know it's benefits,seen them,never try to push them on anyone.

 

You are a smart man Frenchbiker. It's best to ignore this guy!

I'm not ringing my own bell, but I'm a retired Mechanical Engineer. The company I worked for got together a team to improve the reliability of our machinery because we were having huge amounts of downtime due to failures from wear. I was asked to be on that team. We conducted numerous tests with different lubricants. We sent all our samples out to independent labs for results of our test. We cut our downtime and repair cost dramatically by switching to Synthetic oils and grease. I'm not saying Amsoil is the best, But if it's not, why don't some of it's competitors prove them wrong. As for Dino oil, If you want sludge buildup and frequent oil changes, plus shorter engine life, use it!! I'll stay with the syntheics. JMO