Potential Difference going from QSTP 530 to 1030?

[JasonC]

I have run out of my stash of Quaker State Torque Power 5w30 that I have been using in my GF's 02 Cavalier 2.2 OHV w/5-speed manual trans but I do have some QSTP 10w30 that I am considering using when it is time to change the oil. Will there be any substantial fuel economy drop from switch to 10w30?

 

[CharlieJ]

No. \/

 

[spasm3]

I would use it in warm weather.I don't think you will see much difference.

 

[beast3300]

No substantial fuel economy changes. GTG (good to go)