Recently bought a really nice 2015 Toyota Yaris from my parents, with dad retired they just don’t need 2cars anymore and wanted that payment gone. Perfect car for the wife, she wanted and liked it much more than her current 09 Pontiac vibe which is a rebadged Toyota Matrix. The Yaris is the SE Which is the sport model. Wow that thing handles so amazingly well. It stays flat to the ground and the steering is so precise and has that really touchy steering feel where you barely turn the wheel and get sharp results. We are absolutely loving the car. Anyway to my point of the topic.
I was very surprised when I was searching the oil grade recommendation being 5w30?? When even my 2009 Pontiac vibe
AKA (Toyota matrix) specs 5w20. Heck Ford has even back specified my 94 E150 conversion van 5.8L 351 windsor to 5w20 which it will never see. I run mobile1 0w40 euro blend in it. I guess my point is with these manufacturers specifying 5w20 even in old pushrod V8 engines that have been around since well before I was born in the early 70s, why would Toyota choose to stick with 5w30 in such a newer model vehicle specifically built as a gas saver?? I know the little 1nzfe hasn’t been around nearly as long as the 5.8 windsor so I’m just kinda wondering why Toyota has not specified 5w20 for it unless they know it will fail on 5w20. This engine is well known for its reliability and so was the 1.8 in the vibe/matrix. Just thought I would post a thread to discuss and hopefully find that someone has already researched and possibly knows why Toyota has stuck with the 5w30 recommendation. Thanks in advance to anyone who contributes to the conversation. I was actually excited to see it specified 5w30 so I feel comfortable running 0w40 in it where I didn’t with the vibe so always ran 5w20 in winter and 0/30 or 5w30 in summer. So now I have 3 vehicles I believe my mobile 1 0w40 should be great for. 94 351 Windsor 1990 Toyota 4x4 22RE and now the 15 Yaris.
I was very surprised when I was searching the oil grade recommendation being 5w30?? When even my 2009 Pontiac vibe
AKA (Toyota matrix) specs 5w20. Heck Ford has even back specified my 94 E150 conversion van 5.8L 351 windsor to 5w20 which it will never see. I run mobile1 0w40 euro blend in it. I guess my point is with these manufacturers specifying 5w20 even in old pushrod V8 engines that have been around since well before I was born in the early 70s, why would Toyota choose to stick with 5w30 in such a newer model vehicle specifically built as a gas saver?? I know the little 1nzfe hasn’t been around nearly as long as the 5.8 windsor so I’m just kinda wondering why Toyota has not specified 5w20 for it unless they know it will fail on 5w20. This engine is well known for its reliability and so was the 1.8 in the vibe/matrix. Just thought I would post a thread to discuss and hopefully find that someone has already researched and possibly knows why Toyota has stuck with the 5w30 recommendation. Thanks in advance to anyone who contributes to the conversation. I was actually excited to see it specified 5w30 so I feel comfortable running 0w40 in it where I didn’t with the vibe so always ran 5w20 in winter and 0/30 or 5w30 in summer. So now I have 3 vehicles I believe my mobile 1 0w40 should be great for. 94 351 Windsor 1990 Toyota 4x4 22RE and now the 15 Yaris.