Lube oil for NSX

[Fantiga1974]

Hi, in the manual the correct oil for the NSX is 10w30 for normal weather, 5w30 to be used instead in quite cold climate. I heard that after some years Honda was mentioning 5w40 to be used in every climate. Please is this correct? If yes, was this reported in a Service Bulletin or in an updated note for the maintenance manual? Perhaps has anyone a copy to share?

Thanks a lot.

 

[MotorMouth93]

The late year Japanese manuals list 5w40 as an approved fill. It's what I've been using for the last 20k miles or so.



Source page 259 here: https://www.honda.co.jp/ownersmanual/pdf/auto/nsx/30SL0670_web.pdf?genpo=HondaMotor&model=NSX

 

[Fantiga1974]

Thanks a lot