Quote:
Originally posted by MajorTwit:
Thanks for the replies. I'm wondering if they switched to 20w because of the valve train ticking problems.
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I believe Ford and Honda went with 5W20 to get slightly better fuel mileage, but I don't know if they tightened up the clearances, if they did then 5W30 and 10W30 will have a harder time lubing everything that needs oil. The only companys making conventional 5W20 are Pennzoil/Quaker State and Motorcraft. Amsoil is the only one making synthetic as of yet.
Robb