Originally Posted By: CT8
Originally Posted By: wemay
That "higher viscosity engine oils are required for satisfactory lubrication in hot weather" never bothered me before. It does now.
Why exactly does it bother you?
That i was stubborn and just used what was on the Sonata's filler cap without giving the "hot weather" verbiage much thought. It's been in the 90's steadily since May, with a few 100s thrown in. Not to mention the cars thermometer reading slightly higher. Again, not that i think 5w20 will not suffice but i'm more comfortable going with the alternative recommendation. Other folks may not be and that's fine too.
Originally Posted By: Virtus_Probi
Originally Posted By: wemay
For the Turbo, I will try Mobil1 HM 10w30 becuase of its HT/HS of 3.5 and ACEA A3 rating. After that, if i go 5w30, it will have to have Dex1Gen2 approval.
Interesting choice!
I ran M1 5W30 ESP with a 3.58 HTHS for a handful of changes, no problems with it other than being pricey and only available in liter bottles in the US. Starting TBN was low, but I didn't worry much about that with 5kmile change intervals.
I'm planning to stick with Gen 2 oils until GF5+/6 go live, had thoughts about running 10W30 for the warmer months in the past but those are probably on the back burner now unless there happen to be any Gen 2 oils in that grade.
Luckily enough it was $22.xx at Walmart like most of the Mobil rollback still is. I returned the 4 jugs i had left of the clearance AAP QSUD 5w30 Dexos1 first generation oil to get two jugs of the Mobil1 HM. Probably overthinking things but i'm happy now.