Change Oil Once a Year with a Properly Designed Synthetic Oil

Do you use conventional motor oil and change it every 3,000 miles? Is chaning your oil (or having it changed) a hassle? I know exactly how you feel. I felt the same way back when I was changing oil in one of our vehicles every 3-4 weeks. Then I found a godd synthetic oil and started changing synthetic oil in my car only once a year.

Synthetic oils generally hold up better over time than conventional oils. Unfortunately, not all synthetic oils provide for extended drain intervals like one company in particular...

Synthetic Oil Change Intervals

My dad has always been into cars and first told me about synthetic oils about 10 years ago. He told me that you could probably change oil less often, but no manufacturers would put that in writing. With no guarantee about how often I could go without changing synthetic oil, I could never justify the higher prices.

I found out later that even though synthetic oils are more naturally more stable at extreme conditions, that does not mean that they are designed to go longer...

Another mechanical engineer told me about a synthetic oil company guaranteeing that you could run their synthetic oil for 25,000 miles (or one year). I was naturally skeptical. Then I looked at their test data (engineers love data) and found out that they had been guaranteeing 25,000-mile/1-year oil change intervals for over 30 years, I decided to give it a try...

Not only was the convenience great in my car and my wife's car (I saved about 15 oil changes a year), but my car performed better and got better gas mileage...I was hooked!

Mobil recently changed their Mobil 1 product to allow for up to 15,000 miles before changing their synthetic oil. Unfortunately, when you read the fine print you find out that they will not stand behind it under warranty or severe duty conditions (which most usage qualifies as according to car manufacturers).

One company stands behind changing every 25,000 miles, even under warranty. Even under the most severe conditions they still guarantee at least 15,000 miles compared to Mobil 1 which falls back to your owner's manual (typcially 5,000 miles or less).

Changing Over to Synthetic Oil

Some people have concerns about changing over to synthetic oil from conventional oil. Old wives tales say that "synthetics are not compatible with conventional oil" or "synthetics are too slick" or "synthetics will ruin your seals". Fortunately, these tales are false.

Good synthetic motor oils are fully compatible with any conventional motor oil. (Though you lose a lot of the benefits if you mix good synthetics with conventional oil.) They work great in any mechanically sound engine but will not fix existing problems...

As an example, high-mileage cars that have not been well maintained may have bad engine seals that are being plugged by sludge and varnish from conventional oil. A cleaner synthetic oil can clean out enough sludge and varnish for the bad seal(s) to start leaking more. In this case synthetic oil will not repair bad seals.

It is safe to switch to good synthetic oil as soon as the engine is broken in. So the first time oil is changed on a new car can be synthetic. (It doesn't actually hurt the engine to have synthetic in it sooner, it just takes longer to break in.)

When switching to a good synthetic motor oil in a car with over 25,000 miles, I strongly recommend using their Engine Flush product. You put this in with the oil (one can per 5 quarts of oil) to clean out any sludge and varnish left by conventional oil.

I have been told by someone who sells industrial air compressors that they typically do not see the benefit of a change to synthetics until the second change. They cannot chemically flush their compressors, so the first change just cleans out any reside and quickly gets dirty. Engine Flush allows you to get maximum benefit out of your first good synthetic motor oil change.

If you want to switch to good synthetic motor oil on a car with more than 150,000 miles, make sure that it has been well maintained. I switched two vehicles over to a good synthetic motor oil with over 150,000 miles on each without any problems, knowing that they had been well maintained (by me) for at least the last 80,000 miles.

I have had great luck changing to synthetic oil. If you switch to a good synthetic motor oil, I am sure that you will be pleased with your decision because of the great benefits of some of these products.

Where can I buy AMSOIL oil?


Lyle Reinier, Mesa, AZ

Reinier drives a 2004 Dodge Ram. He uses Synthetic 5W-30 in the engine, Synthetic Universal Automatic Transmission Fluid in the transmission and 80W-140 Long Life Gear Lube.

“Synthetic oil has given this truck life that it was hiding before,” said Reinier. Reinier said the Ram now pulls stronger and runs smoother than it did before. He made the switch to a good synthetic motor oil when the truck hit the 3,000-mile mark. “What comes as a surprise to me is that my Dodge dealer had no problem doing a complete drain and fill with the synthetic oil I brought,” said Reinier.

Reinier said the dealer removed all the Dodge transmission fluid and refilled the truck with synthetic ATF. “Within a mile or two I could feel the transmission was smoother and showed a difference in how it performed,” said Reinier.

Guy Keast, Rantoul, KS

"I had heard a lot of good things about your synthetic motorcycle oil used in Harley Davidsons, so I decided to try it out in my 2001 Heritage Softail with the Evolution Series Twin Cam Engine. I noticed right away that the top end of the engine quieted down and on the hot days I run 12-15 degrees cooler than all the guys I’m riding with. I don’t sell your oil, but I recommend it after the improvement it made in my Bike."

Ted Pickul, Sarasota, FL

Pickul drives a 1992 Geo Prizm with unusually high miles. As of February 2005 the Prizm had over 362,000 miles on only 15 oil changes and 31 filter changes. Pickul credits synthetic oil products with extending the life of his car’s engine.

Pickul bought the Prizm new in June of 1992 and after 3,000 miles, converted it to 10W-30 Synthetic Motor Oil. Pickul also installed a 2-Stage Air Filter.

“In November 2003 with 329,000 miles on the engine, I drove the car from Sarasota, Fla., to Carbondale, Ill., without stopping,” said Pickul. “The 13-hour trip was a true tribute to the synthetic oilization of this vehicle.”

The Prizm has a 1.6 liter 4 cylinder engine that has had no major problems. The valve cover was removed at 360,000 miles and it was exceptionally clean.

Eric Pool, Kansas City, Mo

Just wanted to drop you a line and let you know that before I changed my oil I checked the average miles per gallon on my wife's Pontiac Montana via the on board computer and she was getting 18.1 miles per gallon. I then changed her oil to your synthetic oil and installed the your air filter and just let her continue driving it. I checked it about 3 months later and her average miles per gallon had risen to 21.1. So she gained 3 miles per gallon switching to your products.

All products have been designed and made in the USA since 1972. That means the 25,000 mile oil change has been around for over 30 years with an excellent track record. This manufacturer has quality as a number one priority and develops all of its products to assure value is created for their customers. That’s my kind of company.

Upgrading to a good synthetic motor oil is easy. If you are looking to run your engine cooler, smoother, and for a long time you can order synthetic oil and filters online. I know finding the right oil and filter is for your vehicle is difficult enough at the auto parts store and spending a lot of time searching through a website for your specific parts is probably not very appealing.

Let me make it easy for you!

Request a Free Comprehensive Information Package.
You receive catalogs, color brochures, ordering information, parts details, and equipment recommendations shipped immediately and directly to you from licensed Mechanical Engineers at no charge. This is an exclusive opportunity from the largest group of licensed Mechanical Engineer synthetic oil dealers on the web.

Let Us Do The Work For You.
We ship directly to you, so it is convenient, but assembling the initial order can be confusing and time consuming. We make it easy and save you time by providing a list of everything you need for your vehicles and equipment. So please, the more detail you provide on the condition of your vehicles the better the recommendations we can make.

Premium Quality Synthetic Oil and You Recieve Premium Service. Our goal is to answer all of your questions and match you with the best products for your vehicles and equipment. We want to provide you prompt high quality service to match the quality of the products we sell. Don’t let this unique opportunity pass to learn about wholesale pricing (25% off). Don't delay, request your free no obligation information package now. We will rush it to your door!

With that you can order and we ship directly to you via UPS (typically within 3 days).

Better yet! Give me a call! Let me know how the weather is outside of Kansas City. No really, I can answer all of your questions in person and help you get the best pricing on the entire product line.

Call anytime! As a Mechanical Engineer I love answering questions and providing prompt high quality service:


Where can I buy AMSOIL oil