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Buy one and report backI wish the 90915-30002 oil filter fit the 1FZ. Going on Toyota's parts website it seems like I could buy on for $22, but they say it doesn't fit. I'm not exactly sure what is different about the mount to make it not fit. Its been discussed on the forum before.
The filter casting is mounted to an 'L' shaped bracket with 4 bolts. This bracket is mounted to the wheel well with 4 more bolts. I pulled up the carpet near the dead pedal to accomplish this. The only other pic is a poor one that shows the hose routing between the engine and filter casting. Hoses run along frame between upper DS shock mount and tranny dipstick. This location was a second attempt at it. 1st attempt the filters were mounted under the driver's seat horizontally and was obviously not the best choice when it came time to change filters.@80t0ylc : How did you mount the filter assembly/bracket to the wheel well area, is it sitting on a metal plate or---, got more photos??
I installed this setup 25 yrs ago, within a year after I bought the rig used, with 125K mi. Currently there's 299K+. I sent in samples for the 1st 5 yrs and was getting 15K to 25K miles between oil changes. I'd change just the filters every 5K, keeping the same oil. That was back when it was used as a DD. For the last 15 yrs, it hasn't been a DD and I've been changing both filters and oil every 5K, just to be safe. With the local 4 season climate, condensation can mix with the oil and attack bearings even with the low usage it gets now. Yes, the oil stays cleaner looking longer, but with the experience of past sample results I know when to do the oil maintenance. The engine still runs like new, except for a noisy oil pump. The oil pressure is still solid. I need to do a 300K engine maintenance - gaskets, hoses, minor oil leaks, etc... injectors if necessary and take care of the oil pump. At that time I'll get an oil sample analyzed. Yes I know it's more expensive to run Amsoil at this schedule, but the trade off is I expect the lower end to still be solid with good compression and reasonably tight bearings for the mileage.Have you sent out an oil sample for analysis since installing the dual filters, a particle count would be interesting data for comparison.
Does the oil stay cleaner looking longer??
I remember one of those adapters malfunctioning and trashing a dudes freshly rebuilt engine. Have to find that post again.
I installed this setup 25 yrs ago, within a year after I bought the rig used, with 125K mi. Currently there's 299K+. I sent in samples for the 1st 5 yrs and was getting 15K to 25K miles between oil changes. I'd change just the filters every 5K, keeping the same oil. That was back when it was used as a DD. For the last 15 yrs, it hasn't been a DD and I've been changing both filters and oil every 5K, just to be safe. With the local 4 season climate, condensation can mix with the oil and attack bearings even with the low usage it gets now. Yes, the oil stays cleaner looking longer, but with the experience of past sample results I know when to do the oil maintenance. The engine still runs like new, except for a noisy oil pump. The oil pressure is still solid. I need to do a 300K engine maintenance - gaskets, hoses, minor oil leaks, etc... injectors if necessary and take care of the oil pump. At that time I'll get an oil sample analyzed. Yes I know it's more expensive to run Amsoil at this schedule, but the trade off is I expect the lower end to still be solid with good compression and reasonably tight bearings for the mileage.
FWIW there is a good video on youtube about a diesel Powerstroke engine that had a similar dual filter set-up installed when the vehicle was just a month old, then driven for ~900,000 miles (with frequent oil changes) until a lifter failed. When they tore that engine part they found the main bearings to have almost no wear. The failure of the lifter was determined to be due to metal fatigue of the pin bearings for the roller and not related to lubrication.
Dave's Auto now sells his own version of that "Insane" filter for Diesels, not cheap but better than buying a new engine:
I would have to say yes they do. When I crack the filters loose, there is excess oil that flows out other than what’s in the filters. So I would have to say yes to that. Not so when the engine is sitting though, but how would you know? There’s never been any excessive noise.Do the hoses drain when the filter is removed? Or when the engine is sitting?