Originally Posted by ekpolk
Originally Posted by Mainia
Originally Posted by Bud
Well you have two choices. Follow your owners manual or follow the random advice given here.
Follow one of the only companies who uses 0w-20 oil in a turbo, with the ONLY reason of this persistence is to follow CAFE standards. You have no buffer zone when your motor oil is flooded with fuel. Other manufacturers like Hyundai use 5w -30 as their speced oil for turbos with the option to use 5w-40. Their 2.0 liter turbos now have TSB that mandates a full charge to 5w-40 full time speced oil. Hyundai turbos like mine are fighting bad fuel dilution problems too in GDI T motors.
I guess I missed where Hyundai had become the exclusive supplier of engines for Honda. . . The fact that Hyundai mis-designed some of its engines has no bearing (sorry...) on Honda's designs. You don't agree? Then please show us the Honda TSB calling for an immediate change to 5w-40 because of all the failures they're seeing. . . Nope, that's not happening.
Oil gets a lot of fuel in it? Maybe you get effective vis on par with a 0w-16 or a 0w-8 -- not ideal, but both these grades have been successfully used in Japan for years now, and at least as for 0w-16, it's already appearing in mainstream cars here in the US. Additionally, even a light perusal or the UOA section will reveal multiple examples of fuel diluted oil that did not show signs of resulting accelerated wear.
If the OP isn't a troll and comes back and tells us what his manual says, we can take it from there. In any event, I'm willing to bet that Honda has carefully validated the use of whatever oil it is specifying for this vehicle (and all of its others). Yeah, I'm going to go with that over nebulous, vague fears that an oil is just "too thin" every day.
Definitely not a troll, I'm genuinely concerned with the reliability of these motors and wanted to compare:
- BITOG forum views vs other parts of the internet (specifically Civic forums)
My (conflicting) views:
(a) That Honda have designed these engines for 0w20 (bearing clearances/oil flow/oil squirters)
(b) That Honda are using 0w20 oils for the purposes of beating emmissions numbers
That thicker is better (to a degree! I would never consider anything above a 30wt for this engine)
Main purpose is to encourage productive debate. Arguably, everyone on this forum (including myself) is OCD and only wants the best in terms of performance and reliability!
