So I'm off to do my first oil change (3600 miles) on my 3S Hatch. The owners guide says to use 5W-20. I can't find if it says to use regular or synthetic. The only reason I am iffy is.....
1) Variable timing is controlled by oil.
2) Some say use regular for first couple oil changes for proper ring seating (break in). Not enough friction from synthetic oil.
3) Don't want to mess with engine warranty issues if anything bad ever happens.
By the way, if you change your own oil and something happens, how can you prove that you've been doing changes at the proper intervals (7500 miles)? This is my first time owning a car newer than 1983, so I"m trying to be very careful. I've heard some terrible stories......
1) Variable timing is controlled by oil.
2) Some say use regular for first couple oil changes for proper ring seating (break in). Not enough friction from synthetic oil.
3) Don't want to mess with engine warranty issues if anything bad ever happens.
By the way, if you change your own oil and something happens, how can you prove that you've been doing changes at the proper intervals (7500 miles)? This is my first time owning a car newer than 1983, so I"m trying to be very careful. I've heard some terrible stories......