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Mazda USA doesn't allow the use of synthetic oil for warranty support on rotary engines starting with the 2009 model year, it will void the warranty. Prior to that, they only recommended conventional oils; but, because they did not explicitly disallow synthetic oil in the owners' manual, they can not legally void the warranty for use of synthetic oils. That would violate the Magnuson Moss Act.
Japan, Europe and all other countries suggest synthetic oil.
Mazda in Japan sells group IV synthetic oil expressly for use in rotary engines.
Mazda's rotary racing teams run synthetic oil.
Rick Engman, who has built more race winning rotary engines than anyone in the USA does not recommend anything other than synthetic oil in rotaries.
The reason for the myth that you can't use synthetic oil in rotary engines is twofold. First, when they first came onto the market decades ago, the additive package included with early synthetic oils caused some elastomer seals to swell and fail. This issue has been resolve for a very long time. The second issue is how well particular synthetic oils mix with gasoline when injected into the engine to lubricate the apex seals, and how well and cleanly those oils burn off. Because Mazda N.A. does not have the research or legal budget to allow them to recommend some synthetic oils and not recommend others.
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Rx8 bad engine vibration at 6000 revs?
Typically with the Mazda RX8 Rotary engine vibration at revs as high as 6000 is down to engine damage suffered when oil was low. Your engine requires rebuild or renewal. Vibration at idle only is typically engine mounts, a know fault many dealers are aware of.
What oil should you put in your Mazda rx8?
Genuine Mazda 5W 30 Mineral non-synthetic oil.
Can you put synthetic oil in a new engine?
yes you can synthetic oil can go in any engine
What are the warning lights for a Mazda rx8?
There are numerous warning lights for a Mazda RX8. Some of the warning lights are for engine oil, charging system, ABS, and check engine.
Can you use Lucas engine oil additive with synthetic oil?
Lucas also makes a synthetic engine oil additive.. Yes.
Where does the oil go in a Mazda RX?
Out the tail pipe. Literally, if the engine is healthy. The RX8 uses engine oil for the oil injection pump to keep the internal rotor seals lubricated. If your RX8 does not use at least a half quart of engine oil every 4 gas fill ups see your dealer.
Can you mix synthetic and regular oil in a gas engine?
Yes, you can. It is even sold as a Synthetic Blend.
Can an old engine use synthetic oil?
No, old oil can use synthetic engines
Do you put oil where the dipstick is in a Mazda rx8?
No, there is a yellow cap marked "oil" under the top engine cover.
Can it hurt your engine if they put synthetic oil in it?
I use synthetic oil in my 2002 PT Cruiser, and it runs great! Synthetic costs a little more, but it actually better for your engine.
Can you use synthetic oil in a small Kolar engine?
If your engine leaks oil, no you should not use synthetic oil because it will clean sludge and can make the leak worse. If your engine does not leak oil, I would highly recomend using synthetic oil(Pennzoil Ultra 10W30 from Walmart is a good and pretty cheap choice). As long as your engine does not leak oil using synthetic oil is a great choice regardless of how old it is.
Can you top off synthetic engine oil with conventional engine oil?
Yes, you can mix them.
