Initial B

iTrader: (2)

which oil is best for a hot climate and changing oil 1x per year? also, would changing the filter 2x per year yield any benefit? annual mileage approx 15k

Lexus@17

iTrader: (3)

Can i have more information on ENEOS oil please.

Akachan LS

Currently Using Amsoil 5W-30 100% Synthetic since new but strongly considering switching to Amsoil 0W-30 Signature Series at 33K miles.

IS-SV

Mobil 1 synthetic is going in my IS350 at dealer today.

llamaboiz

just bought 2qts of 5w-30 Royal Purple today, now i have 4qt in stock, 3 more to go~ i really cant afford to buy the 7 all at the same time

brociouz

iTrader: (65)

I'm sure it's somewhere, but are there any performance differences between 10w30, 5w30, 5w20, and 0w30? I'm using 5w20 Mobil 1 synthetic per the TSIB.

Karlson

iTrader: (1)

I use Amsoil 0W-30 Signature Series, it runs so smoooooth!

Jetfire

iTrader: (3)

the 0w-30 will have the best pour rate at cold start up(not as thick when starting the engine) it doesn't matter if you live in the desert. your oil will still be thicker than at normal operating temperature(212 F). unless you live somewhere where it is 212 F. since the most engine wear occurs at startup, you'll want an oil that has less viscosity at start up to reduce wear.

the _w-20 will give you better fuel economy than _w-30 because it is a touch thinner at operating temp. less friction, better flow. maybe even a little more power.

if you're not tracking your car, you can use 0w-20 just fine. if you're tracking, you might wanna use 0w-30 or 0w-40 because operating temp is around 300 F.


for driving around town, you could probably run 0w-10 if they made it.

Furyan

I use Castrol Edge 5W-30 and I haven't had any problems.

Jetfire

iTrader: (3)

^i'm surprised you don't use the made in germany castrol synthetic. unless edge is made in germany.

pewterss

My buddy who works for lexus, suggest highly that I used 5w-20... He was just like trust me, much better for the engine. I went to Advanced auto in CT and was only able to find Castrol syntec 5w-20. I'll pick up Mobile next time around. But my vote is for 5W-20

SC3coupe

iTrader: (4)

I used 5W20 as per TSIB but that only applies to 2006
Toyota doesn't say what it should be on 2007 and up, as of now the oil cap still has 5W30 printed on it. And I found most members here are not using the 5W20 anymore. So much for oil migration.

I did use mobil 1 5W20 for my last 2 oil changes, and I feel the 5W20 is a bit too thin. Mobil 1 oil is already thinner than other brands to begin with. I feel it is like water thin.

I changed to castro edge 5W30, it is made in USA, and it is supposed to be made from pure synthetic stock. No German syntec hunting at autozone anymore.

I figure the 30 in 5W30 won't hurt the lubrication and is actually ideal on those 100F days. I know I can drive the car hard and not worry about the oil getting too thin.

516IS

iTrader: (12)

I use 5w-30, no problems so far...

laobo979

iTrader: (5)

Amsoil 0w20 what I use

Rizon25

At 41000 miles, switched from mobil 1 5w30 synthetic to amsoil 0w-30 signature series. I have noticed that the gear shifts are definitely smoother, especially from 1st gear to 2nd gear on my auto transmission. However, the cost for 7 quarts set me back about $62 bucks. Definitely worth it.