Greetings folks,
I recently purchased a 93 Mercury Cougar 5.0 HO. It has 117,000 miles. it runs like a top, doesn't seem to burn any oil. The car was sitting for about 6 months before I purchased it because the owner had died (I purchased it from the son). The oil looked clean when I purchased it, but the son didn't know when or with what type of oil was used in the last change. Last week I changed the oil with Valvoline High Mileage 10-30. I will eventually switch to an Amsoil synthetic once I do one or two ARX rinse flushes. Anyway, since changing having the oil changed I have a strong smell of burnt oil. I initially thought that the service place spilled oil on the motor, but it's been close to 400 miles and the smell is still rather strong. But there is no indication of oil through the exhaust, even after idling for extended periods. Before this change I did do a sea foam treatment through the intake and fuel system, and carbon burnt off from the sea foam made the front of my house look like it was on fire for about 20 minutes!. I spoke with the guy at the service center and he said its a sign of bad valve seals. But if this were the case, why no smoke? Any help would be greatly appreciated. Also I will be adding a bypass setup once I switch to synthetic and do an oil test to establish a base line. Any suggestions for an oil for extended drain periods?
Cheers,
Dennis
I recently purchased a 93 Mercury Cougar 5.0 HO. It has 117,000 miles. it runs like a top, doesn't seem to burn any oil. The car was sitting for about 6 months before I purchased it because the owner had died (I purchased it from the son). The oil looked clean when I purchased it, but the son didn't know when or with what type of oil was used in the last change. Last week I changed the oil with Valvoline High Mileage 10-30. I will eventually switch to an Amsoil synthetic once I do one or two ARX rinse flushes. Anyway, since changing having the oil changed I have a strong smell of burnt oil. I initially thought that the service place spilled oil on the motor, but it's been close to 400 miles and the smell is still rather strong. But there is no indication of oil through the exhaust, even after idling for extended periods. Before this change I did do a sea foam treatment through the intake and fuel system, and carbon burnt off from the sea foam made the front of my house look like it was on fire for about 20 minutes!. I spoke with the guy at the service center and he said its a sign of bad valve seals. But if this were the case, why no smoke? Any help would be greatly appreciated. Also I will be adding a bypass setup once I switch to synthetic and do an oil test to establish a base line. Any suggestions for an oil for extended drain periods?
Cheers,
Dennis
Last edited:
