[MR2] Oil Change

[William Brandt]

Gail - the easiest advice to give as far as viscosities/weights is to go by your owner's manual. 

On the subject of oil, there is probably no more BS, er, opinions, than this subject. 

Mechanics will say to "stay away from this brand/viscosity) because of one bad experience. 

Everyone has their opinions. 

The reason the newer cars are using lower viscosities (5W030, 10W-30), etc) has less to do with engine requirements and more with fuel economy - by using thinner oils the engine has to work less hard at the expense of possible long term wear. 

For Houston with its hot steamy summers and mild winters a 20W-50 would probably be just fine. 

But check your manual. It will show you the allowable viscosity ranges for your model/year. 

Bill