The one you saw Is at the Plus Toll On your Left should be it.
Since there are 2 petron gas station back by back. One for Serdang Raya and one for Sg. Besi.
Not sure I memang 2" not yet have license to drive and explore

Btw you Serdang Raya > pass by South City landmark > Turn left to Sg Besi @ T-Junction going to The Mines?

I wonder the oil quality

Just saw at MRR2 going to Gombak.

for my alza

i will go bhp > caltex 
but dad always kidnap my car ... he feed her with petronas .... still ok lah .....
for my bike

BHP the one 1 she like the most ..... 

can use exxon mobil smiles card here?

ofcoz i did .....

try on my alza and kapcai  ... naik genting , highway , city ride 
shell paling teruk .....  now petron can compete with shell liao ..... ( so far try on my kapcai only ) 

after isi minyak shell .. my car like batuk batuk .... seput seput whn wana pickup  ....  feel like fuel not burning well  ......  other brand no such feeling ....

biasa i went up genting using bike .. rm6 should enough for me go from my hse to genting back home + go 2 day working  only next refill ....

isi shell .....  sampai genting sempah dah used 3/4 tank of my fuel dah ........  i tot meter rosak ....or tank leaking ...   
addition :

i try bhp , caltex .... rm15 went up genting using my alza .... cukup pergi dan balik ..  ( meter left 50km millige ... only isi )

isi shell xcukup utk balik .. 

crap fuel from a poor country! i had been using esso since 2005 and i had no doubt for their fuel quality. before this (likely last month) my car had some check valve problem, fuel pump inconstant pressure, too many back fires and my injectors are clogged. been treated with fuel treatment, the symptoms like half treated well.... then i try to pump full tank of petronas ron 95 fuel and the symptoms above are gone! fyi am driving a subaru impreza and my car is so sensitive to fuel quality (due to tuned ECU + unichip piggyback).... crap petron! now am missed so much my red ron 95 and purple ron 97 colour

basically, Petron fuel is still same with previous Esso/Mobil recipe. Nothing change, only they re-brand due to ownership took over by Petron. Btw, if I'm not mistaken, Esso/Mobil a.k.a Petron has the lowest sulphur content compare to other competitor, mean better for environment. And u never know when the fuel u bought is actually same with others for a certain reason.

(^__^)