ZIC - Dito ako nag stay, ang tahimik sa makina, both matic and manual. Malamig din sa makina.
Personal experience ko from 15W40 Delo Gold to Zic 10W40 to 5W30 Full Synthetic sa 1.6L Diesel Accent mas naging responsive & rev happy yung makina sa 5W30 Full Synthetic kahit sa 10W40 kasi na Full Synthetic hindi siya happy parang pigil yung makina & less responsive siya.
Been using Zic on two Hyundais (Tucson, Santa Fe), and ok yung performance niya. Maintained yung cars with fully synthetic, 10k/1 year intervals. Smooth pa rin manakbo ang engine until today.
Been using that oil on my Gen 3 Montero since 2020, and ok naman, no complaints.
Better to use ZIC X7 fs oil. Korean oil.
Been using it for several years and it’s amazing for its price.
I currently use Zic 5W-20 oil in my mirage
it has around 190kms
Oil being dark is a good indicator that you have to do an oil change. However, you shouldn't wait until it changes color to do it. Clear oil doesn't necessarily mean you can keep going.
It is well established that boxer engines want their oil changed and I do not think for a second that a visual inspection is valid for determining if it is time. Highly, **highly** recommend you change the oil per the manual without hesitation and regardless of what it looks like.
Having had multiple Subarus that leak oil like crazy (they all do when they get old) the leaks are most likely too much for the stop leak additive to fix anyway.
I have a slow oil leak (something like a quart every 1,500 miles). Dealer quoted just under $3,000 for the fix when it was 17 years old with 110,000 miles. I'll just buy the occasional quart of oil.
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