Newly OCD'ing about motor oil

[kenmac]

Are the oil packages required to state whether they are a blend or a true synthetic??

I've read some discussion about Amsoil being a true synthetic. How would I know for sure??

The base oil used is what defines a ''true synthetic'' listed here Synthetic oil - Wikipedia, the free encyclopedia Amsoil is a POA oil .I believe redline / royal purple are ester oil.. Ester is also the synthetic choice for many of the newer A/C condensers

 

[The Fred]

the 3 oils i have onthe shelf right now that are syn all state full syn. kendal, supertech, and valvoline.

I do see some that list 'blend'

the price point on the blend is so close.. why not go full syn...

My feelings exactly.

Any engine I have seen apart that ran Amsoil looked like new inside this goes back to the 70s. Most of these engines came apart for valve reasons; broken timing belts and such, never bottom end failures.

I think Amsoil is super stuff I just don't support their pyramid scheme.

There's just so many great choices in motor oil today how does one really know? I still see BMWs with 18K mile oil changes that are running well over 200,000 miles. Our DOT plow trucks never change the oil from what I am told by state supervisors, replace the filter and top off oil. State has agreements with OEM for this, sad but true.

Something about cradle to grave pollution by vehicles.

Fred

 

[Soundguy]

i'm generally fine with conventional oil, changed at correct interval per usage. however in the last 10ys or so now that I am using plenty of turbo diesels.. I don't mind the extra expense of an oil that has better anti coking properties..the extended drain means little to me.. and the better startup lube is a bonus i'll take.. though I think wear with a good conventional is within norms.

i have a few antiques i have switched to a cheap syn after doing engine work on them. I've not had any repeat stuck valves after I change an engine to syn.

gotta love this cruddy gas plus a moist fl environment.

My feelings exactly.

Any engine I have seen apart that ran Amsoil looked like new inside this goes back to the 70s. Most of these engines came apart for valve reasons; broken timing belts and such, never bottom end failures.

I think Amsoil is super stuff I just don't support their pyramid scheme.

There's just so many great choices in motor oil today how does one really know? I still see BMWs with 18K mile oil changes that are running well over 200,000 miles. Our DOT plow trucks never change the oil from what I am told by state supervisors, replace the filter and top off oil. State has agreements with OEM for this, sad but true.

Something about cradle to grave pollution by vehicles.

Fred