My car: 1995 Fiat Coupe 120k miles, 2L 4 cyl with Garrett T3 turbo. Has a thermostatically controlled oil cooler. 16v head has buckets with shims and double valve springs. Cam wear is a problem on these engines but mine are fine. I have replaced the big end bearings as they were worn, also an issue with these engines. The further away from the oil pump the worse they got. I think low oil level is probably the issue there though. Manual states bearings should have .025-.050mm (1 to 2 thou) clearance for a 50.8mm (2 inch) crank pin.
I don't really care what the manual states but if you want to know it calls for a “semi synthetic 10w40 that exceeds CCMC G5, API SH specification”. I’m sure that specification was only given to suit their oil, Selenia 10w40. I’m guessing by today’s standards this may have been a full synthetic. Selenia describe their oil as having 2 synthetic bases and 1 mineral to ensure optimal distribution of the additives. OCI was 1 year or 15,000km. The dealer never used this oil, they used Mobil Super 15w40 and Mobil 1 5w50
I do not do high mileage, maybe 5000km per year as it is a weekend/track car. Usage tends to be long drive in the weekend or drive to a race track, race around and drive home.
I'm currently using M1 5w50 because it's easy to get on sale but I think a stout 40 grade is sufficient. We don't get the same products as the USA so I'll list a few I can get.
10w40
Penrite Racing 10w40
Penrite Everyday 10w40
Amsoil AMO 10w40
5w40 high SAPS
Penrite HPR
Valvoline Synpower
Shell Helix Ultra
Castrol Edge
Rotella T6 (imported)
0w40 high SAPS
Mobil 1
Valvoline Synpower
Castrol Edge
I don't really care what the manual states but if you want to know it calls for a “semi synthetic 10w40 that exceeds CCMC G5, API SH specification”. I’m sure that specification was only given to suit their oil, Selenia 10w40. I’m guessing by today’s standards this may have been a full synthetic. Selenia describe their oil as having 2 synthetic bases and 1 mineral to ensure optimal distribution of the additives. OCI was 1 year or 15,000km. The dealer never used this oil, they used Mobil Super 15w40 and Mobil 1 5w50
I do not do high mileage, maybe 5000km per year as it is a weekend/track car. Usage tends to be long drive in the weekend or drive to a race track, race around and drive home.
I'm currently using M1 5w50 because it's easy to get on sale but I think a stout 40 grade is sufficient. We don't get the same products as the USA so I'll list a few I can get.
10w40
Penrite Racing 10w40
Penrite Everyday 10w40
Amsoil AMO 10w40
5w40 high SAPS
Penrite HPR
Valvoline Synpower
Shell Helix Ultra
Castrol Edge
Rotella T6 (imported)
0w40 high SAPS
Mobil 1
Valvoline Synpower
Castrol Edge