based on my own experience synthetic oil really does not do much UNLESS you have used it since day one when the car has been driven off the lot ie brand new other than that id say you are safe to switch it back although you should get your leaks fixed
WTF? you can switch from conventional oil to synthetic oil every oil change and back again if you want. It will not damage, change, alter ANYTHING in your motor. Why do you think they developed "Synthetic Blend"? because conventional oil had properties that synthetic oil doesnt (lubrication) and Synthetic oil has properties that conventional oil doesnt (longevity). Only thing is higher mileage engines that have never been exposed to synthetic should shorten their first change after by about 500 miles to drain all the sludge the conventional oil out. Then you can flip flop back and forth as you want.
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Got a friend at royal purple and he changes his oil every 5 to 6k mostly highway miles. He gets it a lot cheaper than we do. Save some money by not changing it so often. Thats one of the pluses of synthetic.
Re: Changing from synthetic back to regular motor oil
switching back isn't a life and death thing but its not recommended. switching over can cause already minimal leaks to bigger ones. as yours seemed to.
but theres no problem in switching back and forth i just wouldn't.
fix your leaks first. even if you switch back it'll still leak.
93 Sol JDM SIR II b16a NA
95 Sol D16Z6 Turbo project
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