1. Besides the fact that an oversized filters will require a bit more oil, are there any reason NOT to use an oversized filter?
2. What to make of these bypass valve specs? What setting is specified by Toyota?
3. Is a lower bypass setting better more oil would reach the engine during cold start?
4. Or is a higher bypass setting better because the more oil would be spent going through the filter media
5. Should we be using different filters in cold vs warm weather? For example, in cold weather, use the one with a lower bypass valve setting?
Wow, you're really into researching oil filters. 1. I had always used the large oil filter in my small block Chevy but in my FJC I'm usig the PureOne PL12021. 2. That I didn't know, whatever the specs call for on the oem filter. 3. That has nothing to do with cold start. Bypass setting is for clog filter. 4. I would tend to agree on that one. 5. Never heard of that one my$.02
Go ahead and use em. Wix acutally had an "Off Road" filter similar to the PureOne offered by Purolator. I'm not sure if it is still available but could check out if your looking to go with each companies best filter.
Question though, why the bigger filter needed? Crumby oil, no air filter, alot of water fording and contaminants in your oil? Swapping filters is usually done because your in a pinch. If the right one is offered why not use it.
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Its not a big deal really what you use. The Eng never drops below 15psi. No filters are are true "full flow". The only way to catch what bypasses the filter is to use a secondary or "bypass" filter that filters the oil off the main gally and return it to the oil pan. Not worth the install.\
have you thought about using the toyota oversized filter such as a V8.
i use the toyota V8 filter which part number is #90915-YZZD3
and just use 5.8 to 6 qts of oil. i use the the Lexus 5w-30
hope that helps some
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Well, the reason I thought it might be better to use the WIX filter in cold weather is that oil thickens up when cold. During cold start, with the WIX filter, the bypass valve would open sooner allowing oil to reach the engine sooner.
i have read some reviews on oil filters just now and see wix is up there and fram is out. has there been a poll on oil filters? i am going to start changing my own. and looking for highest rated . by fj owners. input? sorry didn't mean to rob a thread
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