BenjiHoggi
OEM+
- :
- Oregon, USA
- :
- 22v Protege5
I did a goof.
I used 5W20 on my last oil change in December and just now realized. That was about 2400 miles ago, and I've been regularly topping off from the same jug as well .
If my assumptions are correct, 5W30 and 5W20 have a similar viscosity when cold, but the latter is slightly thinner at operating temp. Most engine wear happens at startup, so I believe I should be fine until my next change. I usually try to stick to the 3k mile interval for oil changes and it's fairly cold right now, so I'll just top off with 5W30 until the next change.
I used 5W20 on my last oil change in December and just now realized. That was about 2400 miles ago, and I've been regularly topping off from the same jug as well .
If my assumptions are correct, 5W30 and 5W20 have a similar viscosity when cold, but the latter is slightly thinner at operating temp. Most engine wear happens at startup, so I believe I should be fine until my next change. I usually try to stick to the 3k mile interval for oil changes and it's fairly cold right now, so I'll just top off with 5W30 until the next change.