Whatever brand you prefer. Just make sure it's a good brand 5w-30 weight. Here is more input: * 5W30 oil in your choice of brands will work just fine. * Regular 5w30 in cold climate. Use synthetic oil. Works wonders. * 10w40 or 10w30, Chilton book warns against using synthetic oil saying it causes leakage in the motor. It recommends 10w30 as an all around oil.
changing the thermostat in a 1991 geo metro 1.3 liter
If its from 85 then its NOT a geo metro engine. It is probably a Chevrolet Sprint engine because they only started making Geos in 88. If you need an engine for your 95 Geo then you could use one of the following: 1991 - 1995 Geo Metro engine. 1991 - 1995 Suzuki Swift Engine, and 1991 - 1995 Pontiac FireFly engine. Hope this helps :)
The 1991 Geo Metro EGR valve can be located on the air cleaner housing. The valve will be on the back of the housing.
Were can I buy a throttle cable for a 97 geo metro
You replace it you do not fix it.
That depends on what it is doing or not doing.
Yes, the 1991 Metro was carburated. Metro's were carburated from 1988 - mid 1992. Some metros had fuel injection but those are rare nowadays.
don't know what size it is
Can you swap a 93 Geo metro manual transmition with a 95 Geo Metro