Agent of Chaos

When purchasing my car, the dealer mentioned about checking the oil every so often (every Gas fill up). Has anyone determined the rate oil consumption yet? or at least an average?
I've been checking it , but haven't noticed any significant changes yet.
Well, I guess another way to ask that question would be how often do you top your oil off?

Thanks,

fxdsconv2000

I check every two fill ups. Need to fill about every 4 fill ups

Agent of Chaos

Thanks for the quick reply. When you say fill, do you mean you add a quart every 4 fuel fill ups, or just top it off every 4 fuel fill ups?

swoope

iTrader: (5)

need to fill up right when i changed the oil at 4700 miles.

beers

SinTil8

My car used about 1 qt/3000 miles - over the first 3000 miles.

Positron

My car uses between 1/4 and 1/2 qt about every 2000 miles. I still check it every two or three fillups (gas), but mine at least doesn't use oil that fast. So there is some variability. You have to get the rhythm of your car. Just one of those fun little things to do... :-)

mm

OBryanRX8

i have 1900miles on mine and its still full, but could be due to the fact i broke it in properly.

Nubo

Should NOT be full if you have not added any oil in 1900 miles! The oil metering pump injects oil into the intake stream for lubrication of the apex seals and housing. That oil is not recovered and is lost through the exhaust.

Either your engine was significantly overfilled when new, or you have some serious oil dilution issue, or you really aren't using any oil. I doubt it's the last as from what I understand the engine would not be able to generate compression without an oil film.

rxeightr

Having 12,700 miles on mine, I have found the oil consumption has decreased. I may have to add a 1/2 quart between oil changes, at most.

rx8miami

it's been a qt. every 2000 for me so far, no biggie

Hou-TX-RX-8

I have added about a quart after 2000 miles

Gibbo

I have found that my car uses a consistant 1 1/4 quart every 2500 miles. I thought this is a bit much. I admit I drive it pretty hard, but is this usage "normal" for the renisis.

Agent of Chaos

I first had to add a quart of oil at 2000 miles. Seems like that is the most consitant repsonse I've seen.

thew

i have 1500 miles on my 8 and have added half a quart thus far.

HiTMaNN

you can just pour more oil in without changing the existing oil?? i did not know that

greyhound

Haven't had mine long, but at 1200 miles I added 2/3 of a quart, which brought it up to exactly the full mark.

blue flash

I've noticed that after the m flash my 8 has stopped using oil should i be worried . its been 2200 miles since the flash

psionic1

I also added about 2/3 of a quart after 1000 miles. Have not had the M flash yet. Don't know if that will change anything.

BoxerGT2.5

I have 6000 mi and have found that for the first 3000 using 5w-20 I needed to replenish more often. The second 3000 miles I have used 5w-30 it doesn't seem to burn it as bad. Make sense to anyone else or has my elevator stopped hitting the penthouse?

gazman

well ive just got 50 litres of oil for free whopeeeeeeeeeeeee!

zelig2

I was just wondering about oil consumption. I've got about 8k miles on my car right now and have never needed to add oil. I've had two oil changes done to the car. I checked it last weekend and was about 3/4 on the dip stick. I don't really drive the car hard at all, I'm pretty smooth most of the time.

williemazda

I purchased mines last year around June and one of the problems I had was that they had to change the oil pan and sensor, something about relocation and a recall. Once they did the oil pan change now I don't have to put oil but once every other month and that's about a quart, regardless how many times I fill up which is at least twice a week because I never drive normal. I have never gotten 24mpg I've gotten as low a 10 and 11mpg when I'm gunning it all the time and about 18-20mpg. I did installed a KN filter and athat cause it tio be peppier and give me better mileage. You can put a KN filter and not void the warranty, but if you put a fresh air intake then you void the warranty and you're on your own it's what the Mazda dealer told me here before I installed it.

allmotorRX8

i wonder if oil consumption is related to the way the vehicle is broken in, because for the evo, if you broke it in "correctly", the evo doesnt consume any oil at all, so i am wondering whether the method of break in will affect future oil consumption.

fray

iTrader: (1)

I've driven my 8 so far about 1000 miles. (It had 16k on it when I bought it). I've put about 1 quart in... but I'm not sure how much you can read into that. The cat was clogged, and it was drinking fuel.. 10-11 MPG while babying it.

Now that the cat is fixed, I've topped it off and we'll see how long it'll be before I had to add more.

Josche

Allmotor, my (limited) understanding is that the rotary engine uses oil as part of its design. Comparing oil consumption in the RX8 to the Evo isn't a good idea, as the two engines function very differently. No matter what you do during your break-in period, your 8 will still consume oil in everyday operation. How much it consumes is probably dependent on how hard you flog it.

A question that I have for all of you-
The dipstick has a low and high mark on it. At what point do you let your oil level go to before you add? If the oil gets to the low mark, how much must you add to get it to high?