what should i use?

 

10w30

 

15w-50..because it gets thinner when its extremely hot out there...i think this has more protection

 

10w-30!

 

so you are saying you should run 10W 30 instead of synthetic?

 

or 15w 50 for summer instead of 10w 30 ?

 

someone knows.....?

 

just use 10w 30 or 5w 30. It doesn't really matter . wasting your money with expensive brands and synthetic because oil is oil. It all comes from a few refineries and the companies just put their name on it and sell for whatever price they want, which is the same is true for oil filters, weed eaters, cars, etc. I laugh at how serious people get over this. you can use the cheapest oil in one car and the most expensive in another; drive them the same and over the life of the car when you break the engine down it will look the same. Dateline did this a few years ago with 10 taxis and different oils and different change intervals and at the end of 60k miles the inside of all the engines had the same amount of wear.

 

you live in Maine, not Arizona. 5w30 is still great.

 

5w30 for an all around oil.
10w30 if the ambient temperature doesn't drop below 30 something degrees.

or check your owners manual

 

5/30 blue container Mobil oil.

 

i use normal 10w40 for my gsr.. i bought it used with 140k miles on it.. its a 1994... it runs the same with synthetic 5w30.. well... thats how it feels for me.. with both oils... my car still eats it.. about 1/2 quart per 700 miles.