@tzb! Bhai aap ko seedha seedha chuna laga gya hay wo banda. Ab next time zara ehtiyaat karna. Always buy it from either Filter House or Pakistan Oil. Filter house's rates are tad higher for individual customers but the assurance of quality oil is 100%.
I myself got puzzled when i read the website but when I saw this, i ignored every other thing.
GS Caltex Lubricants
Its basically the same thing we have, except for the API grade which is SJ. Both SJ & SL are older (but newer than SG of Havoline) so it doesn't really matter which is which.
Plus, those Americans have trashed the support for Wet Clutch engines (such as our CG125 etc) officially long ago, which is why people here mostly focus on JASO (Japense) standards, i.e. JASO-MA ... approved for Wet-Clutch engines.
According to this Wikipedia Page, commonly used oil is still SG Grade, so Havoline is also a'right considering its cheaper and does the job.
While i'll definitely choose a Semi or Fully synthetic oil over a mineral one, i have to keep the prices in my mind too. While at Rs.450 its not really expensive, but i am bound by my siblings' & father's bikes. And if i decide to choose a different oil, Abba G ki baten to sunni parain gi he, i'll be forced to buy the oil for my bike by myself.
Anyway, i didn't say i will go back. I just said that it depends on the outcome.
And i certainly don't know anything about GD110 so i'd say follow your owners manual and see what does it say.