Castrol/Mobil1 5W-40. On my JK I change it every 7000 kilometres MAX
This might be the best oil product of the century.. Valvoline Restore and Protect for gas motors.
Trying the Valvoline protect and restore and it's been great
the regular castrol gtx high mileage green bottle. I used to use it for a kia rio same as accent and the burning went down a lot
I use 5w-30 Castrol and she runs like a
Dream.
I use Castrol Edge 5W30 LL04 (M). I doubt what you read about sludge is true. Regular oil and filter changes are way more important than which brand you use.
i use castrol 5w-40 european vehicle. fully built and no issues at almost 30k
I , personally, like Valvoline products. I've opened up engines just to see sludge built up from not changing your oil or using cheap oil and not changing it enough. I have found that engines that used Valvoline oil were much cleaner on the inside. After many miles. Compared to other brands.
I use the Castrol Edge oil. I was doing 7500 mile oil changes and on this last one bumped that up to 10k miles. I sent out the oil for analysis to decide if I want to step up to an even larger interval. The comments left by the tester: 'Your CX5's engine looks good in analysis! Your results look really good by comparison after the 10,000 miles. Metals are all within good wear ranges, with iron even showing below-average steel wear. Nice! Titanium is just an additive in Castrol. Very nice! Go 12k miles next fill.' I will heed their advice and go 12,000 miles on this next one.
I'm running Castrol EDGE 0W-40 A3/B4 right now, but feel there is more startup noise than when using Mobil 1 FS 0W-40 European Formula.
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