honda mtf or regular 10W30?
 

I need to do a transmission oil change (manual) on a 98 civic, the manual
states that 10W30 oil can be used if Honda MTF is not available.... Other
than the fact that the Honda MTF is 3 times more expensive, is it strongly
recommended to use it? If I replace the oil often (as in, every year), will
regular (of course API approved SAE 10W30) oil do fine?>