Hi all! First post for me after being so passive for past two years. Hope it is not too long...
I own an Alfa Romeo 156 Selespeed. Engine is a Twin Spark 2.0 liter.
Consumes oil at around 1 Quart per 600 Miles.
This is considered normal for the engine. It is referred to as a "loose" engine by Alfisti that burns oil by design. This, is mostly known for the CF3 variant that has different rings. Some folks put CF2 rings and this is supposed to cure consumption completely. This however is time consuming and costly.
This engine is also known for crank failure by neglecting owners that fail to top up in time. You have to check her every week. After losing one engine (previous owner neglect!) I check it daily. The engine now has some 60K Miles on it.
Oil spec by manufacturer is 10w60 fully synth for "decidedly sporty use". Most people around here use Agip. This is what I exclusively let her drink till 6 months ago.
I began topping up 15K Miles ago with 10w40 semi (agip and then liqui moly) and then changed myself to 10w40 and then 5w40 fully synth (again agip and mobil super 3000). I recently switched to Valvoline maxlife 10w40 blend.
Reason was to check if consumption would change as well as thinking 10w60 will be too thick. I don't red line her every day now (and it isn't really possible to do so on a selespeed as it just shifts when close to red line anyhow).
It didn't and now I notice lots of smoke as I rev her past 4,000.
I am thinking - is there a suitable oil that can curb the thirst? I am thinking this is rings stuck and want to use a cleaner/high detergent oil - though there is another possible culprit - a known internal leak at the inlet manifold gasket that I should be checking at the next service (due a cam belt in some 3000 miles.).
Thanks for any help. I can probably provide more info if needed.
Tuval
I own an Alfa Romeo 156 Selespeed. Engine is a Twin Spark 2.0 liter.
Consumes oil at around 1 Quart per 600 Miles.
This is considered normal for the engine. It is referred to as a "loose" engine by Alfisti that burns oil by design. This, is mostly known for the CF3 variant that has different rings. Some folks put CF2 rings and this is supposed to cure consumption completely. This however is time consuming and costly.
This engine is also known for crank failure by neglecting owners that fail to top up in time. You have to check her every week. After losing one engine (previous owner neglect!) I check it daily. The engine now has some 60K Miles on it.
Oil spec by manufacturer is 10w60 fully synth for "decidedly sporty use". Most people around here use Agip. This is what I exclusively let her drink till 6 months ago.
I began topping up 15K Miles ago with 10w40 semi (agip and then liqui moly) and then changed myself to 10w40 and then 5w40 fully synth (again agip and mobil super 3000). I recently switched to Valvoline maxlife 10w40 blend.
Reason was to check if consumption would change as well as thinking 10w60 will be too thick. I don't red line her every day now (and it isn't really possible to do so on a selespeed as it just shifts when close to red line anyhow).
It didn't and now I notice lots of smoke as I rev her past 4,000.
I am thinking - is there a suitable oil that can curb the thirst? I am thinking this is rings stuck and want to use a cleaner/high detergent oil - though there is another possible culprit - a known internal leak at the inlet manifold gasket that I should be checking at the next service (due a cam belt in some 3000 miles.).
Thanks for any help. I can probably provide more info if needed.
Tuval