When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Do you have any detail about the 2gr-fse? I have a 2015 4gs
The 2GR-FSE's injection system is just like the 2GR-FKS with the exception of the self-cleaning cycle. Just as with the FKS, the FSE runs both the DI and PFI together during low loads/RPMs.
The 2GR-FSE and this fuel injection system (D4-S) has been in use since 2006 without carbon build up issues. This is why myself and other posters are questioning the benefit of a catch can. Not that it will hurt, but whether there is a tangible benefit.
The 2GR-FSE's injection system is just like the 2GR-FKS with the exception of the self-cleaning cycle. Just as with the FKS, the FSE runs both the DI and PFI together during low loads/RPMs.
The 2GR-FSE and this fuel injection system (D4-S) has been in use since 2006 without carbon build up issues. This is why myself and other posters are questioning the benefit of a catch can. Not that it will hurt, but whether there is a tangible benefit.
That's valid concern. From what I have read from RR-racing website , those with the biggest benefit to gain using a catchcan would be those who track their cars or spend a lot of time at redline.
Hi All - This is the OP, here for an update, for what it's worth. 14GS now at 21K miles, been 3-4K miles since install of RRRacing oil catch can. Surprising to find that the catch can is full! Definitely catch oil that would otherwise be re-circulated to be burned in the cylinders. I did normal city driving and did not remotely push the car hard during this time.
Pics: After 3-4K miles, oil catch can is 90% full!
Hi All - This is the OP, here for an update, for what it's worth. 14GS now at 21K miles, been 3-4K miles since install of RRRacing oil catch can. Surprising to find that the catch can is full! Definitely catch oil that would otherwise be re-circulated to be burned in the cylinders. I did normal city driving and did not remotely push the car hard during this time.
Pics: After 3-4K miles, oil catch can is 90% full!
Thats awesome, thanks for the update. I'll add it to the list of stuff to buy lol
Hi All - This is the OP, here for an update, for what it's worth. 14GS now at 21K miles, been 3-4K miles since install of RRRacing oil catch can. Surprising to find that the catch can is full! Definitely catch oil that would otherwise be re-circulated to be burned in the cylinders. I did normal city driving and did not remotely push the car hard during this time.
After 3-4K miles, oil catch can is 90% full!
Something doesn't add up here! It appears the catch-can had only engine oil in it. After 3-4k miles of normal city driving the catch-can was 90% full. That means that after driving 10,000 miles of normal city driving (the recommended mileage schedule for engine oil & filter service) the catch-can would have captured ~3 times that amount of engine oil. I presume after 10,000 miles of city driving it would have captured about a quart of oil. That would indicate that if you drive your GS 350 10,000 miles of normal city driving between oil changes you would be about one quart low on engine oil. As I said, something doesn't add up here! I do not think anyone is one quart low on engine oil after driving 10,000 miles. In fact, not even remotely close to one quart low.
Also, I do not see the benefit of a catch-can on an engine that has both port and direct injection. Port injection cleans the intake valves nicely with gasoline, something that has proven successful for decades.
Allow me to clarify some things:
1) So the "gauge" on the oil catch shows 90% full, but the catch can itself was not 90% full. In fact, it was only half full.
2) The contents was poured into a Starbucks Short cup. Short cup volume = 8 fluid ounces. From the pic, you can say it is 1/3 of the cup, thus the oil caught was 2.64 fluid ounces.
3) 1 quart of oil = 32 fluid ounces. ~3 times 2.64 ~= 8 fluid ounces OR a quarter of 1 quart of oil every 10k miles.
Also, agree that port injection cleans the intake valves nicely with gasoline, that solves the valve carbon build up, but leaves the mixture of oil and gas burning, leaving carbon on the piston heads.
Originally Posted by bclexus
Something doesn't add up here! It appears the catch-can had only engine oil in it. After 3-4k miles of normal city driving the catch-can was 90% full. That means that after driving 10,000 miles of normal city driving (the recommended mileage schedule for engine oil & filter service) the catch-can would have captured ~3 times that amount of engine oil. I presume after 10,000 miles of city driving it would have captured about a quart of oil. That would indicate that if you drive your GS 350 10,000 miles of normal city driving between oil changes you would be about one quart low on engine oil. As I said, something doesn't add up here! I do not think anyone is one quart low on engine oil after driving 10,000 miles. In fact, not even remotely close to one quart low.
Also, I do not see the benefit of a catch-can on an engine that has both port and direct injection. Port injection cleans the intake valves nicely with gasoline, something that has proven successful for decades.
Allow me to clarify some things:
1) So the "gauge" on the oil catch shows 90% full, but the catch can itself was not 90% full. In fact, it was only half full.
2) The contents was poured into a Starbucks Short cup. Short cup volume = 8 fluid ounces. From the pic, you can say it is 1/3 of the cup, thus the oil caught was 2.64 fluid ounces.
3) 1 quart of oil = 32 fluid ounces. ~3 times 2.64 ~= 8 fluid ounces OR a quarter of 1 quart of oil every 10k miles.
Also, agree that port injection cleans the intake valves nicely with gasoline, that solves the valve carbon build up, but leaves the mixture of oil and gas burning, leaving carbon on the piston heads.
Seems like a lot. I've never noticed any discernable loss of oil between oil changes.
Seems like a lot. I've never noticed any discernable loss of oil between oil changes.
Yeah I basically have the same oil coming out that goes in. I could see this happening more when the car gets up there in age or higher mileage.
Even though its catching oil, Toyota has been using this motor for many years and there are many examples of 250k+ vehicles that still run strong. So does it even matter?
Seems like a lot. I've never noticed any discernable loss of oil between oil changes.
Originally Posted by peasodos
Yeah I basically have the same oil coming out that goes in. I could see this happening more when the car gets up there in age or higher mileage.
Even though its catching oil, Toyota has been using this motor for many years and there are many examples of 250k+ vehicles that still run strong. So does it even matter?
Agree - I don't think anyone will see any apparent loss of oil between oil changes. I see no need, nor any benefit whatsoever, of having an oil catch-can installed on the GS 350 engine.
Also, agree that port injection cleans the intake valves nicely with gasoline, that solves the valve carbon build up, but leaves the mixture of oil and gas burning, leaving carbon on the piston heads.
Since we have cleared up that there is no real need for a catch can with regards to the valves, lets talk about the pistons.
For piston build-up, I have found the best results over my last 3 vehicles to use the Italian Tune-Up.
This procedure consists of letting that right foot hit the ground so you, and the car, can stretch your legs.
Some good old pulls every now and then will keep your pistons clean.
06-14-19, 01:08 PM
