What Grade Oil You Guys Use.....

[GS300dude]

I got a 99 GS300 w/ 133000 miles and use 5w-30 Mobil 1 high milage oil w/ mobil 1 oil filter. I was thinking maybe I should switch to 10w-30. What about you guys? :)

[sakataj]

I got a 99 GS300 w/ 133000 miles and use 5w-30 Mobil 1 high milage oil w/ mobil 1 oil filter. I was thinking maybe I should switch to 10w-30. What about you guys? :)

if your motor calls for 5w-30 run, 5w-30.

y would u wanna change? i actually used to run 10w-30 mobil 1 on my gs but went back to 5w-30 on MY gs recently. yes, i had a reason for this too btw but its not worth it

[GS300dude]

I got a 99 GS300 w/ 133000 miles and use 5w-30 Mobil 1 high milage oil w/ mobil 1 oil filter. I was thinking maybe I should switch to 10w-30. What about you guys? :)

if your motor calls for 5w-30 run, 5w-30.

y would u wanna change? i actually used to run 10w-30 mobil 1 on my gs but went back to 5w-30 on MY gs recently. yes, i had a reason for this too btw but its not worth it

hmmm whats not worth it?

[nc211]

follow the car manual's rec's to avoid problems and enjoy the best performance of the car.

[eatingupblacktop]

I got a 99 GS300 w/ 133000 miles and use 5w-30 Mobil 1 high milage oil w/ mobil 1 oil filter. I was thinking maybe I should switch to 10w-30. What about you guys? :)

Here's the info you need:

owners manual - http://us.lexusownersclub.com/forums/index...st&p=167930

service manual - http://us.lexusownersclub.com/forums/index...st&p=389508