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oil
its that time again...to change the oil in my 944. i went to a car shop and they told me to stick with non-synthetic castrol GTX..but i noticed on here that a lot of people use a synthetic oil. i went back to the guy and he said that since my engine is 20+ years old, it would be best to use oil that it's been using for most of its life. he also said that synthetic oils will find cracks and holes in your engine faster, thus causing major leakage. what do u guys recommend? and what kinda weight do u recommend during summer/winter
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