BASHTHEBISHOP Posted February 5, 2007 Share Posted February 5, 2007 Approximately 6mnths and 8,000miles ago i had a full service and some mods done which included the following:- 2nd Decat and Blitz Nur Spec R fitted Fuel pump upgrade to Walbro Denso Iridium plugs FCD K & N air filter At the same time i had an oil and filter change. Not more than a month before this the car had a FULL service. Now before these mods and oil change i used to get just over 300 miles per tank and never had to top up with oil. Now i have topped up with 4litres of oil(in a 3 or 4 bits) and i am seeing 200-250miles per tank. Other than these changes the car appears to run great and i have definitely not noticed any blue or any other colour smoke from the exhaust even when booting it. Please can someone tell me if this is expected due to the mods OR timing is coincidental and i have some definite problems i need to get fixed or looked into. PS its a 94 Jspec TT auto. Thanks in advance for any advice Mark Link to comment Share on other sites More sharing options...
Jake Posted February 5, 2007 Share Posted February 5, 2007 You haven't changed your oil for the last 8000 miles? Blimey you're brave. Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 You haven't changed your oil for the last 8000 miles? No not changed, just topped up with a running total of 4litres! I am just about to service the car again but if there is other issues i want to adress those at the same time. Link to comment Share on other sites More sharing options...
Graham S Posted February 5, 2007 Share Posted February 5, 2007 You sure the walbro isn't leaking?? And as jake said, 8k between oil changes, thats not good dude... Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 You sure the walbro isn't leaking?? And as jake said, 8k between oil changes, thats not good dude... Not sure on the walbro leaking - is there an easy way to check? thought 6-8k miles between changes was fine for a car not too far away from stock? Link to comment Share on other sites More sharing options...
imi Posted February 5, 2007 Share Posted February 5, 2007 And as jake said, 8k between oil changes, thats not good dude... really, where does it say that? Link to comment Share on other sites More sharing options...
Ric Posted February 5, 2007 Share Posted February 5, 2007 i think its religious that you change your oil every 2k or you die from extreme ball sack irritation Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 Ok besides the fact that i have not done regular enough oil changes due to been a complete mechanical idiot, please could i still have a bit of help determining wether or not there is much or anything wrong with my sup? Or are u saying do an oil change problem solved with the symptoms it has? Link to comment Share on other sites More sharing options...
Sheefa Posted February 5, 2007 Share Posted February 5, 2007 Wild guess, maybe wrong, but an old/faulty O2 sensor? Most people see a vast improvement when fitting a new one. What fuel you using out of curiosity mate? Greg Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 Thanks for reply sheefa - is o2 sensor easy / cheap to replace? Usually tescos 99 ron superunleaded. I swapped to optimax for a couple of tanks and the fuel consumption was worse. Link to comment Share on other sites More sharing options...
imi Posted February 5, 2007 Share Posted February 5, 2007 Ok besides the fact that i have not done regular enough oil changes is it? Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 is it? Only had the car 8 months and have looked after it as well as i can find info on or so i thought... the book says 9000 miles between changes and i would of though a consumption of 4litres in that time is excessive but i also read interim changes of 4500 should be done. I am relatively new to having a car anything like a supra and the 1st responses i got on this thread werent exactly helpful:rolleyes: Link to comment Share on other sites More sharing options...
imi Posted February 5, 2007 Share Posted February 5, 2007 Mark. 9K changes are ok (make sure you use good quality oil though, silkolene pro S 15/50 as an example and you will be ok). If you go for semi-synthetic oil, then change it more often depending on your driving (how often, what kind; short stints or long journeys) Speak to Oilman on here regarding OIL. Oh yes, losing 4Ltrs of oil is NOT NORMAL at all (losing a bit say a ltr over a period of a few months may not be a cause for concern). Get it checked out would be my advice. You shouldn't be losing that much oil. Any oil patches on the ground where the car is parked overnight? Is the undertray wet? Any Bluish smoke when starting the car in the morning? Link to comment Share on other sites More sharing options...
Sheefa Posted February 5, 2007 Share Posted February 5, 2007 Yeah give the guy a little less stick Imi. I wouldn't have a bloody scooby how often to change the oil and fluids in general before I came here mate. Bash - http://www.mkivsupra.net/vbb/showthread.php?t=98327 for a new group buy on the O2 mate Link to comment Share on other sites More sharing options...
imi Posted February 5, 2007 Share Posted February 5, 2007 Yeah give the guy a little less stick Imi. Not giving the guy any stick....on the contrary am trying to help him out......some on here believe that the supra is some prancing nancy boy car and needs fresh oil every 2K miles.....simply not true. What does losing oil have to do with the O2 sensor? I would be more concerned about the 4ltrs of oil rather than the fuel consumption. Link to comment Share on other sites More sharing options...
Sheefa Posted February 5, 2007 Share Posted February 5, 2007 Never said it had ANYTHING to do with Oil consumption mate. Purely helping out with the MPG situation too, or attempting to. As Imi said Mark, get the car checked over buddy. Chris Wilson is always a good choice - see sig. Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 Thanks Imi No smoke or oil patches and i have used fully synthetic 10 - 60. Silkolene was used by mkiv store on the last service. I will get the car checked out but also want to know some possibilities as i want to learn and also dont want to be ripped off. I know all things arent straight forward and could be many possibilities so a logical approach is all i am after really. Following sheefa's reply i have done searches on the o2 sensor and have already pm'd Nic for a replacement as even if this isnt the only thing at fault it wont do any harm to replace with the age of the car. Link to comment Share on other sites More sharing options...
Scooter Posted February 5, 2007 Share Posted February 5, 2007 to use oil it must be being consumed by the engine (and out through the exhaust-which you say you aren't seeing) or their is a leak.......... Possibly common leaks are cam cover gaskets especially near the rear, oil pressure sensor (in the engine block just below the aircon compressor) crank seals (front more common). Is your engine block complete clean/dry? What about if you shine a torch under the car from the sideand level with the door hinges? any sign of grime/oil here? Link to comment Share on other sites More sharing options...
imi Posted February 5, 2007 Share Posted February 5, 2007 have already pm'd Nic for a replacement as even if this isnt the only thing at fault it wont do any harm to replace with the age of the car. Mark; dont take this the wrong way but with that logic you would be changing most of the parts on the supra on a whim. If I was you I would be concerned about the loss of oil. Regarding fuel consumption - I would reset the ECU (has this been done since you went BPU?) - then fill it up completely and use it all up until the next fill and work out the mpg of the car. (if you get 17-20mpg for average driving in the city you are doing pretty well) Get it checked by one of the traders on here in order to minimize the chances of getting ripped off. (don't tell these supra specialists how to do their job)It may well be the O2 sensor, not that expensive to buy and fit, it could solve the fuel consumption issue or may not. Good luck with the car. Link to comment Share on other sites More sharing options...
Scooter Posted February 5, 2007 Share Posted February 5, 2007 I will get the car checked out but also want to know some possibilities as i want to learn and also dont want to be ripped off. I know all things arent straight forward and could be many possibilities so a logical approach is all i am after really. is the K&N filter in the stock air box? Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 5, 2007 Author Share Posted February 5, 2007 Thanks again Imi - i have never reset the ECU and will give this a try from tomorrow. My driving is mixed - some city, some m'way so i should maybe see a bit more mpg. I have emailed Chris Wilson to see if i can perhaps get the car to him - its due a service anyway and am sure he would quickly identify a way forward. Scooter - Yes K & N is in stock box? Link to comment Share on other sites More sharing options...
Scooter Posted February 6, 2007 Share Posted February 6, 2007 Scooter - Yes K & N is in stock box? if you put it in, have another look in there..........remove the filter and inspect the pipe that leads up to the turbos.........you are looking for signs of oil running down this pipe........if bad there may be oil in the air filter box......... just another possible oil leak source that you can eliminate from your enquires.............. Link to comment Share on other sites More sharing options...
letmeshowyou Posted February 6, 2007 Share Posted February 6, 2007 using 10-60 oil in there could be part of the problem Link to comment Share on other sites More sharing options...
BASHTHEBISHOP Posted February 6, 2007 Author Share Posted February 6, 2007 using 10-60 oil in there could be part of the problem Ok i have done searches which reveal varied opinions on what oil to use - i have only used fully synthetic. Can anyone clarify? Should you adjust dependant on mods? I dont intend on many more but 1st decat and a BC & guage maybe on the shopping list. Thanks Mark Link to comment Share on other sites More sharing options...
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