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.
A while back I had checked my dipstick and it was a bit below full.
I had added a small amount of Lucas oil stabilizer last time and drove off thinking they may have been light on the fill from factory (although i'm sure I checked while new)
Then at approximately 4000kms the oil level low warning light popped on and I had to add nearly a quart of oil.
This seems excessive as I NEVER had burning oil or PCV issues with either of my ISF's.
I'm going to tear off the intake and PCV lines today to see if there is any build up.
No it does not look like there are any leaks under the car.
That seems kinda excessive for that few miles. I used about a quart for the initial break in at around 4-5k miles ( I'm aware you're in Km). Since the initial break in I haven't needed to add oil and I check my oil about every other day.
A while back I had checked my dipstick and it was a bit below full.
I had added a small amount of Lucas oil stabilizer last time and drove off thinking they may have been light on the fill from factory (although i'm sure I checked while new)
Then at approximately 4000kms the oil level low warning light popped on and I had to add nearly a quart of oil.
This seems excessive as I NEVER had burning oil or PCV issues with either of my ISF's.
I'm going to tear off the intake and PCV lines today to see if there is any build up.
No it does not look like there are any leaks under the car.
If you are redlining the RCF a lot, it's going to consume some oil. It burns more oil than my IS F, but it's also a new, more powerful and higher revving engine.
This car needs an oil catch-can more than any other car I've seen. Somebody posted a catch can filled up with just ONE 20-min track-day session. Don't know how many ounces it was, but if you drive the car aggressively, I suspect most of that 'missing' oil was probably burned by the engine thru the intake. Reportedly, the IS-F has/had the same problem, and the PCV system is identical on the RC-F, even though Lexus knew about the problem. Go figure. It sucks not knowing how much of that oil is really being burned thru the engine and how much thru the intake. I want to install a catch-can, but want something OEM-looking, not a ricer one with bright brackets full of letters, and worst of all, having to hack your $300 engine cover to fit it. Hopefully somebody will come with a Lexus-like solution to that problem. And yes, it sucks having to spend money on something like that, but in the long run, burning such an amount of oil can't be good, especially on a DI engine.
This car needs an oil catch-can more than any other car I've seen. Somebody posted a catch can filled up with just ONE 20-min track-day session. Don't know how many ounces it was, but if you drive the car aggressively, I suspect most of that 'missing' oil was probably burned by the engine thru the intake. Reportedly, the IS-F has/had the same problem, and the PCV system is identical on the RC-F, even though Lexus knew about the problem. Go figure. It sucks not knowing how much of that oil is really being burned thru the engine and how much thru the intake. I want to install a catch-can, but want something OEM-looking, not a ricer one with bright brackets full of letters, and worst of all, having to hack your $300 engine cover to fit it. Hopefully somebody will come with a Lexus-like solution to that problem. And yes, it sucks having to spend money on something like that, but in the long run, burning such an amount of oil can't be good, especially on a DI engine.
It needs an Air/Oil Separator like we offer. We updated our model to fit both IS-F and RC-F models, and we have several RC-F customers. This is one of the most popular products on CL for the IS-F. You can check the following thread:https://www.clublexus.com/forums/is-...separator.html
We updated our model to fit both IS-F and RC-F models
But that's still the one that requires hacking your cover, right? As I mentioned, that's unacceptable to me. How about the model you mentioned fitting under the engine cover? I couldn't care less about being self-draining or not. Just give us something that doesn't look like it belongs on a Civic (no offense meant; just my opinon). Any news/specs/photos on that under-the-cover model? Thx.
But that's still the one that requires hacking your cover, right? As I mentioned, that's unacceptable to me. How about the model you mentioned fitting under the engine cover? I couldn't care less about being self-draining or not. Just give us something that doesn't look like it belongs on a Civic (no offense meant; just my opinon). Any news/specs/photos on that under-the-cover model? Thx.
I'm in the process of cutting my engine cover to accommodate the A/O separator, still needs to be smoothed out a bit. I also ordered some different bolts to hold the canister to the bracket because the ones provided are rather large albeit able to be removed by hand.
Sucks having to cut the cover apart but it's probably not that big of a deal to replace down the road if needed.
Why not just let the oil go back in the engine? Seems like they knew it would do it and I am sure it's not going to cause problems or they would of done something different.
Seems like putting it in a can that I have to empty all the time is more of a pain then letting it work as it should from the factory.
09-19-15, 06:53 AM
RCF Burning Oil?
(no offense meant; just my opinon). Any news/specs/photos on that under-the-cover model? Thx.
