Search results

5-ish or more years. We bought this company last summer, the mechanic came with it. This division of our company is in another state, I am the fleet manager. Once I figured out what was happening I tried to correct it. He didn’t listen, fought me every step. So I went to my superior, the...

It wasn’t up to me. I was begging and pleading for near a year. I was over ruled by those above me. So I made due the best I could.

This post has been updated with a new thread.

Original thread- https://bobistheoilguy.com/forums/threads/mechanic-wont-use-oil-ive-chosen.346940/ FINALLY fired this guy on April 1st. He was doing whatever he wanted. Jerry rigging things. Sending trucks to the tire shop for a single tire when the tire could easily have been repaired...

When I worked for the largest oil recycler in the nation, I had to take a 2 day 12 hour course on motor oil and everything that has to do with motor oil. In class we were told that motor oil has a shelf life of 2 years. Opened, 1 year. As for the water in the crank case, condensation forms...

Oil does age and begins breaking down, the amount of time all depends on storage conditions. A unopened bottle stored out of direct sunlight and at room temperature, ~2 years. Opened, a year. Sitting in direct sunlight, it breaks down quicker, opened or not. Sitting in a crankcase it is...

Look at those Lazy-Boy seats!!

Dude, I am the fleet manager for a FedEx Ground contractor. All of my example's, other contractors. Same building. Trucking companies stick with one motor oil because of consistently. They know what they’re getting. Formulation changes aside, the oil is going to provide the same protection...

Recycled oil is the same as virgin oil. The base stock never wears out, it is the additives and viscosity improvers that wear out and the base stock gets contaminated. Recycled oil is distilled, the base stock evaporates, is cooled, collected and turned back into motor oil, gear oil...

I never said you need convincing.

The business I’m in….a friend of mine uses cheap 10w30, changes it every 4-5k. His fleet of trucks, mixed GM and Ford, his engines last a average of 150k. Another friend of mine, same type business, again, mixed fleet of GM and Fords, uses a cheap full synthetic 5w30 motor oil, oil changes at...

It was $60 for my sample to be tested. And what you’re telling me is that this means nothing and that I wasted $60?

So all motor oil is the same? Just different bottles?

A oil sample will show you the a amount of engine wear in that sample, correct? So if oil “X” sample shows wear of 5 and oil sample “Y” shows wear of 8, couldn't someone assume that oil “Y” does not provide the same level of protection as oil “X” and then deduce from that that oil “Y” wears out...

I understand that, but isn‘t Castrol going to make sure they protect their name? Store brands are going to be all sorts of formulations meeting the minimum requirements. But isn’t a brand such as Castrol going to do better than the bare minimum?

Do you have a lawnmower? Change the oil and fill it with what oil you want to test. Measure out a specific amount of fuel. Start the engine, full throttle. Time it. When it runs out of fuel, note the time. Change oil and fill it with the other oil you want to test, repeat test. To be the...

Here is my concern about using different oils, they are not all created equal. I know for a fact oil “X” can last 5,000+ miles and not loose any of it’s ability to protect my engine, I do not know if oil “Y” can do the same. A oil sample would tell me if oil “Y” was still good at 5k or not, but...

I’d change it once a year and be done with it.

Doesn’t matter. I prefer to change it when coming out of storage to make sure there is no water in the oil from condensation.

I’m not arguing that that can’t try, they can. They won’t get to far if he pushes them on it.