The most often cited myth concerning synthetic oil is that it will wear down the seals in your engine and cause leaks. That just isn't true.. However, synthetic oils have come a long way since the early 1970s, and they're much nicer to delicate seals. But while synthetic oil won't create a leak, it will find one.
Myth #3: Synthetic engine oils can wear down seals in an engine and cause leaks. This is an often-cited myth. In fact, if your seals and gaskets are in good condition, synthetic oil will not leak in your engine.. Eventually, those small cracks and crevices can lead to bigger problems â€” with or without synthetic oil.
Switched back to dino, and the leaks are virtually gone. I know most guys say switching to synthetic will not cause leaks on older vehicles, and I .
I have always used Castrol 10w30 GTX, but was thinking of switching to a synthetic blend. I have heard that this will cause oil leaks. Is this true?
Synthetic oil can cause oil leaks. FALSE. When synthetic motor oils were first introduced in the 1970s, they were known to cause the seals in the car engine to