- First Name
- J.
- Joined
- Mar 31, 2025
- Threads
- 6
- Messages
- 213
- Reaction score
- 83
- Location
- Houston, TX
- Vehicle(s)
- 2003 Toyota Tundra SR5 TRD Sport Stepside
Yeah I was curious about that also. I'm not educated enough on the Fumoto valves but I have researched & used the ValvoMax valve on my Tundra.Only thing I don't like about those or the Fumoto ones is that you are leaving a little extra oil in the pan due to the nature of how it works and is sized for the bung.
You can pull the plug as usual and oil flows out of a 1/2" hole, or use the valve insert and you now have only a 3/16" hole - therefore some additional oil remains below the opening for the valve.
According the ValvoMax FAQ page:
“Q: Does any oil get left behind in the oil pan?
A: No, the valve is designed to sit flush with the inside of the pan, thereby releasing all the oil”.
Now I doubt that ALL of the used oil is evacuated through the ValvoMax but what's left shouldn't be an issue especially if the oil changes are done early & often. The convenience factor & risk elimination of anyone stripping out the plug threads, pan threads or over/under torqueing the plug thereby damaging the pan is well worth a minimal amount of used oil left behind at the drain interval. Theoretically once installed the ValvoMax will never have to be removed from the pan again unless the original washer somehow fails & allows a seeping oil leak. But I've had a ValvoMax with the original washer on my Tundra for nearly 3 years & it's not leaked yet. I like the design better than what I've seen Fumoto offer too. The only little thing is that the proprietary drain hose must be attached to release the used oil using the ValvoMax...unless the owner wants to remove the valve completely from the pan. To me it's not a big issue. Fumoto appears to allow the oil to be drained without a drain hose by flipping the little lever on it (which kind of makes me a bit nervous tbinking about road debris that could potentially knock it open but may be very unlikely). I just prefer the safer design of the ValvoMax.
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