MeehSoFly

Last weekend was the first time I changed my oil myself. Bought a toyota oem filter at toyota dealership for the sc400 V8. Drained out old oil full and put castol 10w30 oil in and filter. It felt good doing this yourself, but after I was done, felt stupid cause I put in 10w30. I have maybe 146,000 miles on it so do you guys think it is ok w/ 10w30 or should I change it again to 5w30. Thinkin bout synthetic mobil 1 5w30 but scared it might leak. I felt w/ 10w30 on the egine is kinda heavy. What do you guys think. Any help would be apreciated.

Please don't bombard me w/ that search feature!! Already searched and no definte answer to my question. Thnks guyz!!