nexgen91

I am looking to add an aftermarket engine oil cooler to my truck (02 V6 4x4 TRD)I am looking at the 15501 - Derale Engine Oil Cooler Kit (Derale #259-15501 ) Specs:
# Tube and Fin Engine Oil Cooler Kit Light Duty Sandwich StyleUniversal fit
# 12-3/4'' x 7-5/8'' x 3/4'' Overall Dimensions
# 6 Pass cooler
# Cooler inlet: 1/2" barb
They have it for sale on the jegs site for like $83 would this fit on my truck without having to relocate the filter? If not can someone recommend a kit for around the same price that would work for me? I see jegs has a tacoma specific kit, but it is $40 more.

Also , do I need to upgrade the orange fan clutch to the green one as well or wil I be ok to tow about 3500-4000 uhaul?

FogRunner

There is no point in putting a oil cooler on the 5VZFE engine because it already has a very effective one.

If you look on the side of the engine behind the oil filter you will see a small can with hoses running to it, that's your oil cooler. It uses the engine cooling system to keep the oil right around 190-200F. This is the optimal temp for helping to burn out condensation and also control viscosity.

Find another project to spend the money on


FOG

Midget96

I added one mostly because it's extremely easy to do so if you plan on relocating the filter. Using an infrared thermometer, oil temp is around 175º at 110° ambient air temp. The oil to water cooler on the block is fine if you're in cooler temps and never go off road, but if you're in the desert and wheel hard or tow, an air to air cooler is certainly a great addition to prolong bearing life and extend oil change intervals.

FogRunner

Running 175F oil temps is TOO COLD for the oil. Oil needs to get to at least 190F and stay there for the moisture to evaporate out of the oil. If you don't get the moisture out the oil will turn acidic and make sludge and attack seals. So if anything your not extending your oil changes but actually causing the reverse because your destroying your oil with moisture and combustion by-products that are not being evaporated.

I had a oil temp gauge and kept a eye on it for 6 months of Houston 95F-100F summer days doing everything from towing a 5K trailer to HARD wheeling in the sand on the beach.

After 6 months I pulled the gauge out because the oil temp never changed once the engine was warmed up. The oil temp stayed right along side the engines operating temp of 190F and never varied. The reason is the stock oil cooler is a liquid to liquid cooler and because of that transfers ALLOT of heat from the oil with very little space.

Also another issue with adding a cooler is its added friction for the oil pump to have to push the oil through which can reduce flow.

FOG

mt_goat

First add a oil temp gauge to see what you have. If you are running temps like FOG forget about it. If you are running temps like I was (as high as 260* F) add a cooler. Note: my truck is supercharged running 10+psi of boost with a radiator designed for a 150 HP engine and Evan's waterless coolant. The cooler I used knocked about 30* F off the high, or a 230* max. Other changes in the cooling system knocked another 10* off. I now see a max of 220* F.

For details on my oil cooler look here: https://www.yotatech.com/forums/f160...5/index23.html

cpizzle42

Kind of an old thread. But just got my motor back from the builder ( .20 over bore, studs, better head gaskets, all new stuff) and was going going to replace the stock oil cooler with new one. Then I saw it was over 700 bucks retail! Shoot dang! Anyway so now I am lookin at different opitions. Just clean it really good? I would not mind running my own cooler on the raditor since the new motor with have S/C and goodies. As anybody else done anything off the oil cooler location? Is it just NPT threads?