Engine oil AMSOIL or ZIC

Been using it for over a year now sa daily scooter ko. Change oil every 2.5k kms, and so far, less wear and tear naman. Engine feels smoother, and surprisingly, di ganun kadumi yung langis pag draining time. Solid for daily use.

Amsoil 5w-40 full saps

Im using zic sa vehicles namin. So far ok naman.

Im using amsoil. Change oil interval every 5k. Pag gipit, 6k kms.

I've been using Amsoil for mine since bought new

Amsoil OE for gasoline engines. Amsoil Turbo Truck for diesels. They are reasonably priced naman for their specs. They have the latest API rating din.

Amsoil Signature Series

Amsoil. Iba takbo.

Got a call this morning from him and he said that the gasket/seal for the oil filter housing where it connects to block is leaking oil.

I've used amsoil 5w40 European formula ir worked great for when it was a street car, switched to royal purple 5w-40 due to a recommendation and immediately regretted it, tons of blow by I didn't have before. Dumped the royal purple CRAP as soon as possible, just a few miles on it.