Using 5w30 in a engine speced for 0w20?

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Originally Posted By: Trav
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the regulations DO require that Honda (and any other manufacturer) to do everything in their authority to ensure that customers driving the cars are using the same lubricants as those used to certify the fuel economy of the engines before they are sold. In this case, Honda apparently is using 0W-20 oil in fuel economy certifications; therefore, they are "recommending" the use of 0W-20 to the end user.


Thanks for that explanation, now things make a lot more sense.

thanks for this! can this also explain different grade being recommend at different global region?
I don't have J3x engine with VCM, what I like to know is does VCM operate like i3 instead of V6 on long steady highway drive? if so, does oil pressure drop when 1 blank of engine is working?
 
Originally Posted By: 1999nick
Does Honda still not use self-adjusting hydraulic valve lifters, as has been common in most America cars for 60 years?


That is correct: every Honda engine that I know of uses valve lash adjusters on the tips of the rocker arms.
 
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