synthetic oil

[gibbo80]

i was wondering if anyone could tell me y synthetic is better for car (brief and general would be fine). I also heard that you shouldnt switch to synthetic if you havnt been running it before because it can cause leaks to start. If anyone could help i would appreciate it. I have a 89 with 150k and havnt used it, wasnt planning on it but should I?

[daniel240]

synthetic oil is lighter, and thinner. when you pour it out, it is almost like water, but other non-syn. oils are thicker and pour slower. synthetic oil helps your engine to run a little smoother and faster. the reason it could cause leaks is that it is thinner than non-syn. oil and can go through smaller areas and cracks. generally on higher milage engines. i use it in my 96 with 80K miles and have had no problems.