So. im not afraid to admit when I was wrong and I was wrong in my thought process and thinking about motor oil and weight. In the Hyundai service manual AND general thinking on BITOG, the manual states basically 5W20 for "fuel economy" Ooops. that does NOT mean best engine protection!. It then states use 5W30 or 10W30 for satisfactory lubrication in hot weather...So what i take away from these statements is:
5W20 for the best fuel economy.. While maybe sacrificing engine protection over the long run
5W30 for better engine protection and under higher heat / load
and 10W30 for "best" engine protection above 0F, while maybe sacrificing MPG.
So to say the least, just because 5W20 is printed on my oil cap, im feeling that's strictly for the EPA, and not the best oil for my engine..
Im not trying to turn this into a thin vs thick debate (again) but just admitting fault, and my misunderstanding. Maybe you guys are on to something!. This engine does see red line, and i will now be changing it early to a 5W30 synthetic at the minimum for the "better" engine protection. - Just because 5W20 works now in this engine, again does not mean its the best choice for longevity...
Engine is question is a 2.0L in a 09 Elantra
PS- im not saying everyone should run 5W30 or above, but depending on application, you might get better protection.
PS2- also im not saying 5w20 is a bad oil choice, it all comes down to APPLICATION, and USE.
YMMV.
5W20 for the best fuel economy.. While maybe sacrificing engine protection over the long run
5W30 for better engine protection and under higher heat / load
and 10W30 for "best" engine protection above 0F, while maybe sacrificing MPG.
So to say the least, just because 5W20 is printed on my oil cap, im feeling that's strictly for the EPA, and not the best oil for my engine..
Im not trying to turn this into a thin vs thick debate (again) but just admitting fault, and my misunderstanding. Maybe you guys are on to something!. This engine does see red line, and i will now be changing it early to a 5W30 synthetic at the minimum for the "better" engine protection. - Just because 5W20 works now in this engine, again does not mean its the best choice for longevity...
Engine is question is a 2.0L in a 09 Elantra
PS- im not saying everyone should run 5W30 or above, but depending on application, you might get better protection.
PS2- also im not saying 5w20 is a bad oil choice, it all comes down to APPLICATION, and USE.
YMMV.