Tesco also often sells Total on promotion, both semi & FS @ 5ltr bottles.
The Mobil 5w50 FS are also suitable for normal cars, just depends on what car. I've used it before and it's fine.

Buy FS oil during promotion in Tesco is even much better value for money compared to semi. Semi oil only max discount up to rm40 but FS oil can be as much as rm100-110 discount. More over FS oil can last twice as long as semi, so it save even more than semi.

Oil shelf life can be more than 1yr, if not mistaken even up to 2-3yrs.

Eneos is a good oil, I've used up to 10k km and no problems whatsoever.

I bought mine from Jusco 2yrs ago, they were on sale for only rm90+ @ 4 ltr bottle. It was Mitsubishi Oil 5w40 FS made by Eneos.

If semi then still quite many selling but if FS then almost none. I saw only once last week in AEON Jusco Setiawangsa where they offer Shell made in US 5w30 FS in 4x1 quart packages.

Regular price for the Mitsu Eneos oil is just rm129 at AEON Jusco.
Rm200 is very expensive, unless you bought some ester based Eneos oil.

That's actually very similar to the Mitsubishi Eneos oil I bought, exactly the same viscosity and API grade and same bottle shape, just different label and bottle color. That's why I never want to buy oil at normal workshops anymore.

Can get full synth oil at that price.

Seldom use Castrol because also not often on promotion, but sometimes got promo in Tesco.
FS oil actually got a few grades. The higher end ones like Motul, HKS, Amsoil, Liqui Moly etc2 are all >rm200. Then there are the normal ones which can be <rm150 when on promotion (but their normal prices are also >rm200). Eneos also makes higher end and normal ones. For me, driving just normal cars, I don't see the need to spend money using such expensive oils when I can get still good enough quality trusted oils at much cheaper prices in those supermarkets. Of course if you ask those shops where you bought the oils at normal/expensive prices, they'd say the oils in the supermarkets are fake la, low quality la, not suitable for Malaysia spec/climate la, etc2 typical whatever bullshit coz they just cannot sell at such low prices. Unfortunately some consumers do believe those BS and hence keep throwing money away at those shops.

But if you really calculate, using FS oils bought at promo prices will still be much cheaper.
Let's take my latest example here:
Bought a few mths ago Mobil 3000 5w40 FS oil @rm119 for 5 ltr bottle or rm95.20 if convert to 4tlr volume
Filter cost was rm25, also bought on my own.
Labor cost was rm20 at the nearest workshop at my place.
So total was only rm140.20 but can last 10k km which is only rm70.10 for 5k km. So compared to your cost of rm110 all in for 5k km, your spending is still 57% more expensive than mine.

That's why I never buy at petrol stations also.

That's the spirit!

Exactly! That's what I've mentioned also sometime earlier somewhere. It's not just due to the filter and labor cost but the cost/km for the oil by itself is also can be cheaper by using FS provided that you buy the FS oil at huge discounts like in Tesco/AEON.

For me I follow the recommended OIC which is 10k kms for my car because the oil filter is only recommended up to that distance which is still perfectly fine paired with FS oils. Further more I often drive a bit fast and hit max rev so 10k kms is reasonable. I don't want to waste time and money just changing filter only.

Yup, still should be fine as long as the car still regularly driven even at short distances, or driven at least like once or twice a week.