How often should I oil change?

Question

I know the standard answer is every 3000 miles or 3 months. But I've heard that newer cars or highway miles are different. If I put 1000 miles a week on my 98 Toyota - mostly highway, do I really need to change my oil every 3 weeks? What about the synthetic oil? If I used that, how often should I change my oil?

Thanks!

Answer 1

popular question here..... use this as a guide for synthetic oil.

4 cyl.- only 5000 miles

6 cyl.- 6000 miles

8 cyl. 8000 miles

Add 2000 miles if you run a K&N oil filter

Answer 2

I usually get an oil change every 6 months, but i also constanly check the oil to see if its dirty.

Answer 3

your toyota is listed at 5-7000 miles in those conditions... synthetic oil can about double your change interval, provide better MPG and protection for your motor.  i generally don't go beyond 6K even with synthetic although i know you can.

WHY?  well, if you change your oil consistent at decent intervals, you can turn a car into a million mile car.

Answer 4

you should go to a micanic

Answer 5

everyone recommends every 3,000 miles but realistically you can go at least to 7000 miles every oil change.