Engine oil RED LINE or ZIC

okay naman ang Zic, which variant will you be using? Sa office namin halos lahat ng sasakyan, trucks and forklifts included, Zic X6000 ang gamit namin in the last 5 years, never had an issue with it

Red Line.

I like red line oils, because they have a bit more zddp which is nice for the rockers.

On chilly winter mornings (SF Bay Area) the car did not like reverse or first gears. Subsequently switched to Red Line engine oil. More power, better mileage.

I tried 10W40 in my car as 5W40 was beyond my budget at the time and it's been great.

Before 2023 i was using zic 0w20 but caltex has newer technology

Ran Redline 5w40 when it became purely a summer car in ~2013. ... Not seals are leaking, no issues of any form. Car has been Cobb stage 2 91oct tuned (OTS, not pro-tuned) almost 14 years, with a Crawford v2 AOS, Killer B oil pickup + windage tray being the only reliability mods, and it doesn't burn a single molecule of oil.

Used this for my old Alterra that made it to 250k mileage. Good budget option.

I just put Redline 5w-30 into my 2011 STI at the last oil change. We'll see how it goes.

I’m currently living in Korea and switched to a ZIC SK Enmove X8 5w-30 full synthetic and OEM Kia filter 26300-35505. Pretty much directly after ticking started.