lexus114

Hi everyone, as you know Toyota/Lexus back specked our vehicles to be able to use 5W-20, and supposedly even 0W-20 motor oil. Here is what i discovered; Back in April of 2012 I tried Pennzoil Platinum 5W-20, and it seemed to perform very well on it and even gaining some fuel millage. However, the valve train was nosier, and it had a strange clunk in the drive train while coasting and then hitting the gas again. So I drained it out and went with the Mobil-1 5W-30 for a while, I liked the mb-1, however I didnt like the way the motor ran cold (seemed doggy to me) more that usual when cold. Then it came time for an oil change and I decided to try Pennzoil Conventional 5W-20 or (PYB). I must say I am very impressed with this oil. It has more throttle response, better cold engine drive ability, and the motor just seems to be happier on it. No clunks in the drive train, no odd valve train noises, so far so good. I will keep you all posted. I had discovered a while ago these motors do not like a heavier oil, and now I am convinced of it for sure.


Ryan

P.S comments are welcome. ; )

kiwi

FYI, royal purples 5W30 has the fuel mileage of 5W20. i have ran conventional 5W30 castrol since i bought it 4 years ago (mine is a 2004) and switched to royal purple about 2 months ago, so far so good. its the dead of winter here in northern canada, so i dont expect to see any real gains in mileage til the summer.

lexus114

Is this the latest RP/ i.e SN rated?

kknguyen11

All

If you guys up North!!!!!! why don't you use 0-20w!!!! that the best you can get for the cold weather.

kiwi

kknguyen11; reason i dont is because the engine was designed for a specific oil(granted toyota/lexus has changed there mind, which i dont undertand how that can be) i have 190,000 km on mine, and i am afraid if i go too thin i might start burning oil. my garage is heated to 10 degrees celsius, and i use a block heater at work when the temp is -20 celsius or colder, so im really not worried with 5w30, going down 5 in the first number prob wont make that much difference anyway.

lexus114; like i said, i switched over to RP about 2 months ago, after reading the bottle was when i realized that it has the fuel mileage of a 5w20. not sure when the change over happened. main reason i went with RP was it is one of the few oil companies who use a full synthetic, no blend, no gimmicks, just engineered oil.

kickin8

iTrader: (1)

have you tried Mobile1 0W30?

jamieZ

You never win when you try to second guess the manufacturers recommendations. Why would you even bother? jamie

hypervish

I'm running 0W-20 in my 1MZ-FE also backspec'd for a 20 weight. No strange noises, still purrs like a kitten and smooth like always. A bit better throttle response it seems, but who knows! lol, I'll probably be going back to PP 5W-30 on my next OCI.

(yes, same reply from BITOG)

lexus114

Because it is back specked.

lexus114

Sure have, seems like a good oil as well.

Jumper73

I don't understand this terminology. What does it mean??

lexus114

In other word`s, Toyota claims it is okay to use the 0/5W-20 as far back as 06. (I know, Im an 05) but I like the 20 Weight oil better.

kknguyen11

lexus114

I used 0-20 synthetic, change oil every 10k miles, still look clean, and best for rx.

V/r

Khoi Nguyen

lexus114

Just curious, what brand of 0W-20 do you use? Pennzoil Platinum, Mobil-1, Quaker State?

kknguyen11

lexus114

Toyota and mobil-1

V/r

Khoi Nguyen