I had a 06 tC. Valvoline sent me all the oil for it. I have like 3 cases of the 5w-30 at the house. Now my 08 xB takes 5w-20. I should be able to use the 5w-30 right. What do you think?

http://www.bobistheoilguy.com

You'll most likely find well informed answers there.

my xb shows 0w 20

I'd use it above 40F ambient. I'd be hesitant to use it in colder weather. In fact, I'll probably be running 5-30W in the summer months and 5-20W during the rest of the year.

i, personally, wouldn't do it. the oil passages these days are so small that even adding another 10 in the viscosity scale will not be helpful. better safe than sorry, imo.

I would take it to walmart and get a gift card. lol

I live where we harldy ever get down to 40. If it does it is not for long. I mean most the time it is above 90 here.

got my first free oil change today NOT!!! the xb comes with synthetic oil from the factory but the free oil change you dont get synthetic oil thats a extra $25.96. what a rip off think i will change my own next time . can be done for less then $27.00

http://www.howstuffworks.com/framed.htm?parent=question164.htm&url=http://www.micapeak.com/info/oiled.html

I wouldn't hesitate to use 5-30W in my XB if I had some already but after reading the above article, I'll be running 5-20W instead. I'll also be skipping Scion's 'free' oil changes and running full synthetic.

yes i got the syn oil but paid the 27 bucks .
i know 2 guys who sell amsoil so i know i can get it for less then 27 bucks .

...the xb comes with synthetic oil from the factory...

Where did you hear this?

from the toyota dealer that changed my oil.
and if you read your owner's manual on page 239 the recommended oil viscosity is 0w-20. and the oil i have seen you can't get 0w-20 in a non synthetic oil.



look at
0w-20 mobil
0w-20 amsoil

On page 239 the manual states:

"SAE 5-20W or 0-20W engine oil may be used. However, SAE 0-20W is the best choice for fuel economy and good starting in cold weather."

If I lived in Alaska, I'd run 0-20W but here in Maryland it rarely ever gets below 20F so I'll be running 5-20W year round. Remember that the first weight is the base oil and the second weight is the result of the polymers added to thicken the oil at higher temps. The less polymers the better and 0W base oil is pretty thin for warmer climates.

FWIW, WalMart has Mobil One 5-20W in a 5qt jug for $22.