Oil Consumption / 2008 GS 350
03-12-19, 01:39 PM
#1
Intermediate
Thread Starter
Oil Consumption / 2008 GS 350
I have 165K miles on my car.
Have changed the oil every 5K miles with Mobil synthetic oil for many years since I owned the car in 2010.
The low engine oil light has now come on 3 times between oil changes for the last 9 months.
Is there an oil product additive (such as Lucas) that I can add to help this issue?
Could I possibly have a leak somewhere?
Is this normal at 165K miles?
Any ideas or suggestions would be appreciated.
Have changed the oil every 5K miles with Mobil synthetic oil for many years since I owned the car in 2010.
The low engine oil light has now come on 3 times between oil changes for the last 9 months.
Is there an oil product additive (such as Lucas) that I can add to help this issue?
Could I possibly have a leak somewhere?
Is this normal at 165K miles?
Any ideas or suggestions would be appreciated.
03-12-19, 06:46 PM
#2
First thing I would do is take it to a mechanic have him put it on a lift and inspect for big obvious leaks. If there are no leaks, you can start by replacing or cleaning your pcv, the part is cheap, and easy to replace.
Next with the engine hot after driving it, I would remove the spark plugs. Pour liberal amount (2 bottles) of seafoam into each spark plug hole, reinstall the plugs (Do not start the car) without coils and let it sit overnight. Next morning, remove all the plugs and crank the engine over without the plugs this will spit out seafoam from the combustion chamber. Install the plugs and drive it hard!
The seafoam should help soften the gumming of the piston rings freeing up the oil control rings. You can try an engine flush aswell bg109 and run that before you do an oil change. Its possible the bg cleaner will clean the piston from under the piston skirt. Drive the car slowly (keeping low rpm) for about 15min and drain and fill with clean oil.
Also for a high mileage car, I wouldnt run the oil to 5k run it to 3k miles.
Next with the engine hot after driving it, I would remove the spark plugs. Pour liberal amount (2 bottles) of seafoam into each spark plug hole, reinstall the plugs (Do not start the car) without coils and let it sit overnight. Next morning, remove all the plugs and crank the engine over without the plugs this will spit out seafoam from the combustion chamber. Install the plugs and drive it hard!
The seafoam should help soften the gumming of the piston rings freeing up the oil control rings. You can try an engine flush aswell bg109 and run that before you do an oil change. Its possible the bg cleaner will clean the piston from under the piston skirt. Drive the car slowly (keeping low rpm) for about 15min and drain and fill with clean oil.
Also for a high mileage car, I wouldnt run the oil to 5k run it to 3k miles.
The following 2 users liked this post by ibidu1:
Ironman50 (03-19-19),
User 122922 (07-04-22)
03-14-19, 01:55 AM
#3
Pole Position
that thing smoking oil when you gas it hard?
either sell it now or drive it by the time anything serious happens the car is gonna be worth nothing anyway . that's if you wanna save money, if not order a gasket kit and start with changing valve stem seals cuz those are a problem. dont buy them separately cuz theyre like $14(insane i know) each, buy the whole gasket kit for $200. and if that doesnt help then you gotta clean the rings which might be impossible without disassembling the engine, $5k from lexus which is dumb cuz you can get like 7 engines for 5k.
either sell it now or drive it by the time anything serious happens the car is gonna be worth nothing anyway . that's if you wanna save money, if not order a gasket kit and start with changing valve stem seals cuz those are a problem. dont buy them separately cuz theyre like $14(insane i know) each, buy the whole gasket kit for $200. and if that doesnt help then you gotta clean the rings which might be impossible without disassembling the engine, $5k from lexus which is dumb cuz you can get like 7 engines for 5k.
Last edited by potatomon; 03-14-19 at 02:18 AM.
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Ironman50 (03-19-19)
03-14-19, 03:12 AM
#4
Pole Position
Your oil control expander is probably caked with deposits so the oil control ring isn't able to push on the walls and collect the oil so it burns up. You can try seafoam but rings are cheap so you only need to spend 300 on rings and gaskets to make it good again and a set of new head bolts. 10 each OEM but Mahle sells them for 45 a set of 16.
Do this and your engine will be like new. And put in a catch can it's absolutely vital to keeping an engine carbon free
If it's Rwd it's even easier cuz you don't need to remove driveshafts and the diff
Do this and your engine will be like new. And put in a catch can it's absolutely vital to keeping an engine carbon free
If it's Rwd it's even easier cuz you don't need to remove driveshafts and the diff
Last edited by potatomon; 03-14-19 at 03:17 AM.
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Ironman50 (03-19-19)
08-22-21, 10:52 PM
#6
may I ask why I should change the oil after using seafoam, do I also need to change the spark plugs as well ? Thanks
First thing I would do is take it to a mechanic have him put it on a lift and inspect for big obvious leaks. If there are no leaks, you can start by replacing or cleaning your pcv, the part is cheap, and easy to replace.
Next with the engine hot after driving it, I would remove the spark plugs. Pour liberal amount (2 bottles) of seafoam into each spark plug hole, reinstall the plugs (Do not start the car) without coils and let it sit overnight. Next morning, remove all the plugs and crank the engine over without the plugs this will spit out seafoam from the combustion chamber. Install the plugs and drive it hard!
The seafoam should help soften the gumming of the piston rings freeing up the oil control rings. You can try an engine flush aswell bg109 and run that before you do an oil change. Its possible the bg cleaner will clean the piston from under the piston skirt. Drive the car slowly (keeping low rpm) for about 15min and drain and fill with clean oil.
Also for a high mileage car, I wouldnt run the oil to 5k run it to 3k miles.
Next with the engine hot after driving it, I would remove the spark plugs. Pour liberal amount (2 bottles) of seafoam into each spark plug hole, reinstall the plugs (Do not start the car) without coils and let it sit overnight. Next morning, remove all the plugs and crank the engine over without the plugs this will spit out seafoam from the combustion chamber. Install the plugs and drive it hard!
The seafoam should help soften the gumming of the piston rings freeing up the oil control rings. You can try an engine flush aswell bg109 and run that before you do an oil change. Its possible the bg cleaner will clean the piston from under the piston skirt. Drive the car slowly (keeping low rpm) for about 15min and drain and fill with clean oil.
Also for a high mileage car, I wouldnt run the oil to 5k run it to 3k miles.
08-23-21, 01:43 AM
#7
Because he would be leaking a bunch of seafoam directly into the oil pan as it passes through the piston rings. Seafoam is not bad in oil, but I wouldnt prolong it, best to replace that oil after doing a direct pour inside of the spark plug holes.
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User 122922 (07-04-22)
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07-04-22, 02:34 AM
#8
First thing I would do is take it to a mechanic have him put it on a lift and inspect for big obvious leaks. If there are no leaks, you can start by replacing or cleaning your pcv, the part is cheap, and easy to replace.
Next with the engine hot after driving it, I would remove the spark plugs. Pour liberal amount (2 bottles) of seafoam into each spark plug hole, reinstall the plugs (Do not start the car) without coils and let it sit overnight. Next morning, remove all the plugs and crank the engine over without the plugs this will spit out seafoam from the combustion chamber. Install the plugs and drive it hard!
The seafoam should help soften the gumming of the piston rings freeing up the oil control rings. You can try an engine flush aswell bg109 and run that before you do an oil change. Its possible the bg cleaner will clean the piston from under the piston skirt. Drive the car slowly (keeping low rpm) for about 15min and drain and fill with clean oil.
Also for a high mileage car, I wouldnt run the oil to 5k run it to 3k miles.
Next with the engine hot after driving it, I would remove the spark plugs. Pour liberal amount (2 bottles) of seafoam into each spark plug hole, reinstall the plugs (Do not start the car) without coils and let it sit overnight. Next morning, remove all the plugs and crank the engine over without the plugs this will spit out seafoam from the combustion chamber. Install the plugs and drive it hard!
The seafoam should help soften the gumming of the piston rings freeing up the oil control rings. You can try an engine flush aswell bg109 and run that before you do an oil change. Its possible the bg cleaner will clean the piston from under the piston skirt. Drive the car slowly (keeping low rpm) for about 15min and drain and fill with clean oil.
Also for a high mileage car, I wouldnt run the oil to 5k run it to 3k miles.
07-04-22, 11:58 AM
#9
im sorry but did you just said to pour 2 bottle of seafoam into each cylinder??? Because I’m going to do this procedure soon and not sure how much I should be putting and also not sure if to use seafoam or chem dip what I heard about seafoam is it’s flammable but chem dip is NOT , please any help would be appreciated 👍🏼
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User 122922 (07-04-22)
07-04-22, 01:35 PM
#10
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