How Do I Switch from Conventional to Synthetic Oil?

To borrow a famous slogan, just do it.

There is still some confusion about changing to a different type of oil in vehicles, particularly older models that have accumulated many miles. A small group of ill-informed individuals in garages and on blogs still cling to old beliefs that synthetic motor oils cause roller followers to “slip or skid,” or that switching toChange Oil, Synthetic Motor Oil, AMSOIL synthetic motor oil causes issues in older engines, particularly oil leaks.

Facts have since replaced these outdated ideas about synthetics causing engine problems. The use of synthetic lubricants is growing rapidly because properly formulated synthetics offer benefits well beyond what conventional and synthetic blend products can provide. Many new passenger car and light truck vehicles come factory filled with synthetic lubricants – not just high-performance sports cars.

There are a couple of ways to install AMSOIL synthetic motor oils for the first time.

• Jump right in and simply change the oil – many people do this with excellent results

• Flush the engine first – this process more immediately removes sludge and debris accumulated over time

The main difference between flushing your engine and a normal oil change to synthetics is the rate at which the built-up debris is removed from older engines. If you change to AMSOIL synthetic motor oil without flushing, accumulated debris is cleaned from the engine over subsequent oil changes. When you use AMSOIL Engine and Transmission Flush, the cleanup is more immediate and helps ensure the engine is clean and free ofEngine & Transmission Flush any accumulated contaminants.

We recommend using AMSOIL Engine and Transmission Flush if your engine has a questionable history or is known to have deposits. It’s also great insurance if you simply want to give your vehicle a fresh start. It’s exactly what I did after buying a Honda CR-V a couple years ago with 157,000 miles on the odometer. After flushing the engine, installing AMSOIL Signature Series 5W-30 Synthetic Motor Oil and an Ea® Oil Filter, the engine – now at 206,000 miles – has run flawlessly ever since.

Whichever procedure you use, be confident you’re putting the best product in your engine when switching to AMSOIL synthetic motor oil.

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  1. Flush the engine and press on. I have used amsoil for a number of years. More than 20. It is expensive (I hate the word cheap) BUT the bottom line the gas milage improves and oil usage decreases. I love it when I just slip it off the grip stick and it just feels slicker. Try that after 6K with mobile 1. I’ve used it on Honda’s and Jeeps completely (trans, differentials, transfers) and never had a failure. My mechnicics just step back and nod. I tend to be just a little aggressive (not crazy but my wife is confidence when the snow or sand is deep and the laughter is high)
    on my jeep vehicles ( especially in 4W).

  2. This is a good product. I am using this AMSOIL product long time and my car engine is always a good condition for This product. Thank you for this information.

  3. 1. rebuilt 65 mustang, 289 engine – has 7000 miles – 10w30 oil – should I CHANGE to 10w30 syn. amsoil oil?
    2. should we flush out engine, before switching to synthetic 10w30 amsoil?

    Thanks for Ur reply & help info.

    1. Your engine should not require flushing because it hasn’t ran enough to accumulate sufficient “motor sludge”. With only 7000 miles you can switch with your next oil change and greatly increase the life of your motor if used consistently vs conventional oil.

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