Quote:
Originally Posted by ben805
Last time when I tried 5W-20 on my wife's 05 SE V6, the old oil pour out like running water when I changed it at around 3000 miles, the engine noise was slightly louder with the 5W-20 oil as well, no way in hell I would ever use it for our car again. I don't care what toyota recommended or says, IMO 5W-20 and 0W-20 is way too thin to be effectively protecting the engine in the summer heat. There are some researchs out there who had conducted fuel efficiency test on 5W-20 vs 5W-30 and the result was very disappointing, like less than 1% gain in mpg LOL BITOG forum is the best place to ask oil related question. Personally I am going to stick with 5W-30 be it V6 or i4  |
How an oil drains is meaningless. Engine clearances and the correct oil viscosity/weight mean everything.
The OP should use the correct _W20 weight oil, because that's what his vehicle calls for.
