do most of you think that all convential oil is good for 5000 miles plus?i mean pby mobil clean qs supertec and ect.
conventional oil?
- Thread starter ernied
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Yes,yes and yes! You can do no better than dino a good filter and a 5k oci!
Yes.
Any major brand of motor oil should go beyond that. That is figuring normal driving conditions. Severe conditions would be lower.
Yes, but as Loobed said, it has a lot to do with your driving habbit.
I can run conventional for 8,500-9,000 but many people will need to stick with something in the 5,000 range..or lower.
I can run conventional for 8,500-9,000 but many people will need to stick with something in the 5,000 range..or lower.
No But a lot of people will say otherwise.
But I like running a real good synthetic. Run a UOA and see?
But I like running a real good synthetic. Run a UOA and see?
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I bet a premium synthetic would look WORSE in a uoa due to the high detergency suspending the used EP and other contaminants. Does this give a reliable wear indication? - NOPE. You would need comprehensive particle count - AND - a filter content wash down and count to est wear without an engine teardown and measurement of crit wear areas.
Conventional is getting better and better. I just use "syn" when I can get it for a deal.
Originally Posted By: Pop_Rivit
Yes. I change the oil in my vehicles twice a year using conventional oil, and it's usually about 5,000 to 6,000 miles. I've been doing this for the last 15 years or so.
+1 I see no benefit from using syn. EXCEPT EXTENDED OCI'S although some i'm sure will not agree with me and that is fine because i base this on my opinion and everyone is entitled to their own.
Yes. I change the oil in my vehicles twice a year using conventional oil, and it's usually about 5,000 to 6,000 miles. I've been doing this for the last 15 years or so.
+1 I see no benefit from using syn. EXCEPT EXTENDED OCI'S although some i'm sure will not agree with me and that is fine because i base this on my opinion and everyone is entitled to their own.
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Yes, and in most cases a conventional "dino" oil will go much further. A lot of new cars with oil life monitors specify conventional oils and the OLMs go to 6500-9000 miles plus. Why would the manufacturer recommend doing something that would kill the engine? And how many times have you heard somebody say "my engine died prematurely due to motor oil?" Personally, I don't think I've ever heard that statement. Use whatever the manufacturer recommends at the interval they specify and your engine will perform perfectly fine.
Sure.
Just do it regulary and it's good!
Just do it regulary and it's good!
look up the posted uoas.
Gm has recommended OCI's per OLM for well over 15 years based on a 7500 mile interval.
Originally Posted By: ARCOgraphite
I bet a premium synthetic would look WORSE in a uoa due to the high detergency suspending the used EP and other contaminants. Does this give a reliable wear indication? - NOPE. You would need comprehensive particle count - AND - a filter content wash down and count to est wear without an engine teardown and measurement of crit wear areas.
You keep saying this, and you have even gone so far as to say that detergents are abrasive. Most modern detergents, including calcium, act as friction modifiers. That means they reduce friction, not add to it.
I bet a premium synthetic would look WORSE in a uoa due to the high detergency suspending the used EP and other contaminants. Does this give a reliable wear indication? - NOPE. You would need comprehensive particle count - AND - a filter content wash down and count to est wear without an engine teardown and measurement of crit wear areas.
You keep saying this, and you have even gone so far as to say that detergents are abrasive. Most modern detergents, including calcium, act as friction modifiers. That means they reduce friction, not add to it.
My companies policy is 5000 mile oil changes. They haven't had any exotic vehicles in their stable that I know of. Since I've been with the company there has been GM 3.1/3.4s, GM 3.8s, Dodge 3.7s and my Toyota Hybrid 1.5.
I was thinking of switching to synthetic and pushing to 10k but decided why mess with it since it really doesn't affect me.
I was thinking of switching to synthetic and pushing to 10k but decided why mess with it since it really doesn't affect me.
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