Engine oil Castrol or OEM Honda
Castrol Edge is usually cheaper than Mobil 1 and will be as good.
Can use 5w30 or 5w40.
0w40 or 5w40 will give you slightly better engine protection if you drive at high rpms more often.
I wouldn't use anything cheaper or different than those two really. You don't need more expensive oils than those either.
Castrol edge is just fine, even the cheapest one is likely better than whatever was good 20 years ago.
295,000 miles using Castrol GTX high mileage and fram XG filter
Michigan I use 0w20 Castrol Edge all year.
As long as you're not getting cheap gas station brand oil, you'll be fine. I've been using Castrol Edge 5w40.
Mate, just get Castrol Magnatec 5w30 full synthetic and change it every 8000km or 1 year, don't fall for snake oil propoganda
Honda HP4S.
One must change the oil by 8.5k kms, due to constant thermo heat cycle, its addictive pack gets broken down, oil gets dirty.
I did burn more Castrol than kroon. now i cannot get kroon and changed to Motul which seems to burn faster than kroon.
One time I had the oil bug bite (keera) and I decided to get the best oil. Castrol (I don't remember the number) but it was 340 AED for a gallon. I poured it into the engine and it felt good. That weekend took it for a desert drive and during one of the breaks, the entire oil just leaked out of the main seal. The oil was so good that the engine didn't have the tolerances to hold it back.
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