5W20 in MPV

Yes Mazda Tech Service Bulletin 01-013-03 for the 2001-2003 MPV's you can use either 5w20 or 5w30.

The only difference is 5w20 may provide lower emmissions and higher fuel economy.

-- Dan

2001 MPV "Those who forget history are condemned to repeat it" - George Santyana

Don't use any oil thinner than xW30 in your engine. At the higher-stressed areas it will turn water-thin.

I doubt the manufacture has a different oil recommendation for So Cal ... The oil question has been put Mazda at many meetings I have attended ..... the answer that emerges lately is the change to 5W20 is mainly for fuel mileage ..... it has a Ford engine and I think you will find most Ford vehicles use 5W20 .... I have also heard of other manufacturers switch to

5W20 ..... It seems like a small change in viscosity to affect fuel mileage ... but on the bigger scale it makes sense .... having said that if you had a preference for a slightly heavier oil I doubt it would have any detrimental affects ..... keeping the oil changed on schedule and keeping the proper level is more important ....

higher-stressed