Alphamox
New Member
- Joined
- Sep 25, 2015
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- Location
- Melbourne, Victoria
- Members Ride
- Calais V Redline
Hello my fellow v8 owners,
I have a 2010 ve series 2 calais with the L77 v8 thats clocked 100,000km. Im currently having issues of oil consumption and go through a litre of oil every 6000km. In terms of modifications I have a full HM Headers exhaust, VCM otr and its maffed tuned. At first we thought the oil had been going into the intake, so I had the passenger rocker cover replaced (as my original one did not contain a deflector shield) and I installed a sealed catch can - at the same time I had spark plugs changed, ignition leads changed, water pump changed, radiator changed and harmonic balancer changed. These did not solve the issue.
So far I have had my car assessed by x2 reputable performance workshops and both havent found anything of concern. Dyno runs and leakdown tests show good performance all round. I even had one of them saying that my engine would have to be the most quietest L77 to date. He even added that he would be happy to claw more money off me and Dx further, but this would be bad for business. I also thought that maybe pinging due to the oil loss as when I ramp the throttle I can hear a metal click - but you guessed it, the dynos on both workshops showed no ping.
Oddly this issue started to occur after my switch to penrite hpr 10 from what the dealer was using after warranty expired, but I dont think this is the case. I even tried a different brand of oil, i.e. nulon full synthetic 5w30 and oddly it goes through the same rate as the hpr10 which is thicker. There are also no leaks and pre oil change I do an engine flush.
I was told the following options
1. Rebuild it. Not ideal and if the motor is showing good power, I must be missing something and hence my call out for help.
2. Get a low km, later year L77. Again, not ideal but will consider if exhaust all possibilities and solution to this problem.
3. Do the afm delete and cam it. This advice was given to me by another workshop as the LS3 valley plate that comes with the kit will reduce oil consumption due to the way its setup. In further note by the workshop, The DOD delete will change the way the pcv is setup and help combat oil consumption. To test his honesty , I did tell him Im happy to pay for a rebuild upfront (even though not my intention) and he said that there is no need as the engine idles and cranks, pressurizes fine when I do the 'hold accelerator down and turn the key' procedure.
If my observations are correct I estimate by the time I hit 10000km for service I would have gone through 1.5 litres of oil. This will be below the 'hash section' of the dip stick but not to the point of needing to refill oil as per what the manual shows, the 'add oil' hole is actually lower towards the bottom of the dipstick (which equates to 2 litres loss). Im happy to let it consume oil, but guaranteed that consumption will not worsen, that I wont fowl plugs, clog cats, carbon up my pistons and power will remain the same. At least Im not worse than some other manafacturers that see 1litre per 1000km as the norm
I was told that earler LS motors suffered oil consumption issues, but not so much the later LS motors
Please Help
I have a 2010 ve series 2 calais with the L77 v8 thats clocked 100,000km. Im currently having issues of oil consumption and go through a litre of oil every 6000km. In terms of modifications I have a full HM Headers exhaust, VCM otr and its maffed tuned. At first we thought the oil had been going into the intake, so I had the passenger rocker cover replaced (as my original one did not contain a deflector shield) and I installed a sealed catch can - at the same time I had spark plugs changed, ignition leads changed, water pump changed, radiator changed and harmonic balancer changed. These did not solve the issue.
So far I have had my car assessed by x2 reputable performance workshops and both havent found anything of concern. Dyno runs and leakdown tests show good performance all round. I even had one of them saying that my engine would have to be the most quietest L77 to date. He even added that he would be happy to claw more money off me and Dx further, but this would be bad for business. I also thought that maybe pinging due to the oil loss as when I ramp the throttle I can hear a metal click - but you guessed it, the dynos on both workshops showed no ping.
Oddly this issue started to occur after my switch to penrite hpr 10 from what the dealer was using after warranty expired, but I dont think this is the case. I even tried a different brand of oil, i.e. nulon full synthetic 5w30 and oddly it goes through the same rate as the hpr10 which is thicker. There are also no leaks and pre oil change I do an engine flush.
I was told the following options
1. Rebuild it. Not ideal and if the motor is showing good power, I must be missing something and hence my call out for help.
2. Get a low km, later year L77. Again, not ideal but will consider if exhaust all possibilities and solution to this problem.
3. Do the afm delete and cam it. This advice was given to me by another workshop as the LS3 valley plate that comes with the kit will reduce oil consumption due to the way its setup. In further note by the workshop, The DOD delete will change the way the pcv is setup and help combat oil consumption. To test his honesty , I did tell him Im happy to pay for a rebuild upfront (even though not my intention) and he said that there is no need as the engine idles and cranks, pressurizes fine when I do the 'hold accelerator down and turn the key' procedure.
If my observations are correct I estimate by the time I hit 10000km for service I would have gone through 1.5 litres of oil. This will be below the 'hash section' of the dip stick but not to the point of needing to refill oil as per what the manual shows, the 'add oil' hole is actually lower towards the bottom of the dipstick (which equates to 2 litres loss). Im happy to let it consume oil, but guaranteed that consumption will not worsen, that I wont fowl plugs, clog cats, carbon up my pistons and power will remain the same. At least Im not worse than some other manafacturers that see 1litre per 1000km as the norm
I was told that earler LS motors suffered oil consumption issues, but not so much the later LS motors
Please Help
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