2018 Elantra Sport 6MT Electric Blue
I saw the TSB and have been using 5w40 the past two changes. I hope all turns out well hah
I I would only use 5W 40 if you’re in a climate that doesn’t get below 30°FFor my experience on my ES, 5w30 was smoother than 5w40.
I've switched to 5w40 from several OCI ago, it's louder and not quite smooth. No matter the brands were Pennzoil Euro or Motul.
Just changed to 5w30 at last weekend as I still had some remaining oil in three different brand and model oil jags. They were Liqui Moly High Tech (2L), Pennzoil Ultra Platinum (1L) and Pennzoil Platinum (1L). I let my dealer service to blend them together for changing and they just mentioned it's fine for all same grade (5w30). Well, seems my ES liked it more. The smooth and quiet was back again. Although, the TSB also recommended 5w40 but my ES gave me better feeling for 5w30 grading.
As the temperature was just raised to 5 to 6 of these 2 days, I'll compared to below 0 from the coming days.
Doesn't matter. 5w = cold weight, 30/40 = warm weight. Both 5w30 and 5w40 have the same weight when cold. The higher 40 weight when warm is what helps counteract the fuel dilution from the GDI.I I would only use 5W 40 if you’re in a climate that doesn’t get below 30°F