hello & good morning.

I'm using an Estima ACR50 2006 Model, which using a 2AZ-FE.
it currently already run near 5000km since last service (clocked at 290000km),
and I frequently get a low engine oil alarm occasionally - whenever braked suddenly/ make a sudden turn

I have asked my mechanic previously,
he mentioned that the engine may due for overhaul - as the sealant may worn-out causing some oil leak/evaporates

as his temporary solution, he suggests for top-up oil if the low-engine-oil alarm comes back.

currently the main oil flowing is 5W30, he suggested for top-up wil 5W40 of the same brand - Mannol (both is fully synthetic)

it is advisable to mix different oil thickness?

don't have. that 5W40 is what I have in hand right now.

thanks for the sharing

if every 5k need to top-up, does it consider serious?
no other problem so far, engine's running fine all the way - no weird noises, no vibrations

prior Raya Travel I checked, the level still at max.
but when I check just now, totally dry, damn.

I top-up 1L (that's what I have on hand at the moment),
then reading at mix.
(need to buy topup more later)