01 taco 2.4 auto. Amsoil conv question

[baloo]

My Taco has about 140K. Well maintained. Oil changes every 3K. No leaks.

I have a couple questions. I searched and am sure the answers are there somewhere but ....

I want to change to synthetic. Once, a long, long time ago when I did it to a higher mileage car (70K +) it developed leaks all over the place. At the time I was told there was a window for converting that I had passed.

Has anyone else done this on a higher mileage vehicle without problems?

What filter should I use? I would like to get a bigger one.

This is among my quest for better gas mileage.

I have a full weekend of maintenance planned since I have to do the half shaft on the drivers side (torn boot), fuel filter from NAPA (you know, replacing the lifetime one that is in there), as well and am considering flushing the trans and converting it to Amsoil as well.

[Bob98SR5]

My Taco has about 140K. Well maintained. Oil changes every 3K. No leaks.

I have a couple questions. I searched and am sure the answers are there somewhere but ....

I want to change to synthetic. Once, a long, long time ago when I did it to a higher mileage car (70K +) it developed leaks all over the place. At the time I was told there was a window for converting that I had passed.

Has anyone else done this on a higher mileage vehicle without problems?

What filter should I use? I would like to get a bigger one.

This is among my quest for better gas mileage.

I have a full weekend of maintenance planned since I have to do the half shaft on the drivers side (torn boot), fuel filter from NAPA (you know, replacing the lifetime one that is in there), as well and am considering flushing the trans and converting it to Amsoil as well.

none of these things will increase your mpg significantly, so dont get your hopes up too high.

go to the amsoil site and you'll see a search engine. plug your vehicle's stats in and youll get an output of everything imagineable that they sell that fits your truck.

i have not read anyone having problems swithcing to synthetic *ever* on this or other forums. if it does leak, just switch back or fix the seals (if cheap)

[Lee]

fyi, its a 2.7

i ran synthetic on my 01 4r, 3.4, w/no issues.

currently also running synthetic in my 00 camry 2.4

[baloo]

Not sure what "fyi, it's a 2.7" meant?

I am not expecting big gains, but synthetics are definately a step in the right direction as well as being easier on the vehicle and GREAT in colder wheather (trans).

My issue was personal experience from WAAAAYYY back as well as there are a number of horror stories about older vehicles developing leaks, albeit not yota specific, which is why I asked here. Amsoil is my choice and I will probably just do a dealership through my shop to get a break on it. Man it has gotten expensive.

[Seanz0rz]

fyi= for your information, its a 2.7 liter I4, or you could have meant a 3.4L V6

[MTL_4runner]

I doubt the vehicle you converted was a Toyota that leaked at 70k. I pulled the most of the seals on my motor with 140k+ and they were no where near leaking any oil. I highly doubt you'd run into any issues with switching over to synthetic and if you go with a 5W-30 or 0W-30 you will get better gas mileage than with dino oil (how much will depend on alot of conditions but even 1 MPG is worth the switch).

[baloo]

fyi= for your information, its a 2.7 liter I4, or you could have meant a 3.4L V6

I knew what both "meant" just did not see how they appliede. Went back and saw the typo in the title. It is a 3.4L.

[baloo]

I highly doubt you'd run into any issues with switching over to synthetic and if you go with a 5W-30 or 0W-30 you will get better gas mileage than with dino oil (how much will depend on alot of conditions but even 1 MPG is worth the switch).

At this point, you're right. I would pratically kill for 1 mpg.

[Seanz0rz]

yea, if your engine is in decent condition, adding synthetic will only increase the life of the engine by decreasing friction(that also robs power, possibly netting you 1 mpg increase)

[MTL_4runner]

I would pratically kill for 1 mpg.

No need to go that far , just adding synthetic should get you there. I did see a fairly decent improvement after switching on my 3.4L, somewhere around 1 MPG. I'd also highly suggest changing the fluid in your diffs to synthetic (Amsoil or Mobil 1) and use Seafoam in the gastank (3 cans in 1/3 of a tank) if you are on a quest for better fuel economy. Also change your plugs and clean your MAF sensor, then reset the ECU (pull neg batt terminal).