What is an extended OCI?

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What do you consider an "extended" OCI when using synthetic oils? I typically do 5k mile OCI's using synthetic (Pennzoil Platinum). Most posts I have seen seem to suggest a 7500-10k OCI using synthetics. Does one adjust this mileage if they see "severe service"?
 
Originally Posted By: defektes
7500+


agree...i might even say generically regaredless of oil that anything above 6k is an "extended" OCI...since that is double the 3k dino OCI of yesterday...

but 7500k or more would be what most will probably say
 
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What do you consider an "extended" OCI when using synthetic oils?


In my case I consider one year an extended OCI. Actually, I consider it a normal one. The only thing I would deem severe in my case would be where the service consumed a whole lot of fuel without much mileage racking up on the odometer.

I think I can manage about 1000 gallons of fuel per OCI (edit) in either of my jeep engines.
 
Anything over 3k or 3 months is extended, j/k. I'd say depending on the manufacture's recommendation, anything over that. I would say typically anything over 3k/3months for severe service, and 7500/6-12 months for non-severe service. Or if you have an OLM, anything beyond where it sets.
 
Originally Posted By: otis24
What do you consider an "extended" OCI when using synthetic oils? I typically do 5k mile OCI's using synthetic (Pennzoil Platinum). Most posts I have seen seem to suggest a 7500-10k OCI using synthetics. Does one adjust this mileage if they see "severe service"?



I'm wrapping up an extended OCI (for me) with PP. The first run in my E-150 after over 20 years of Mobil 1. This OCI was 1 year and will come in at about 4,000 miles.

In answer to this question:

Originally Posted By: otis24
Does one adjust this mileage if they see "severe service"?



Yes I adjust for severe service, or if I had some kind of mechanical issue during the OCI. For example, hard starting, or stalling might prompt me to reconsider how long I want the oil in my engine. W/O adjusting for normal, to severe service one could expect problems with sludge etc down the road. JMO
 
Anything over the manufacture recommended oil change interval would be considered a extended OCI, to me it's that simple, you can not put a mileage on it in a general anything over xxx covers this criteria, look at my Honda, normal OCI using regular old conventional is 7500 miles, so a extended OCI for me is around 15k ( I try to hit between 12k-15k) I think when you start looking, and performing the Amsoil extended OCI's then your jumping into a different league of extended drains, which from reading I have seen many use a by-pass oil filtration system, and also use oil analysis as a tool for monitoring the condition of the oil, us normal (broke) people trust that the synthetics (I'm guessing over 90% of that us is using a real world hydro-cracked dyno oil with a high additive package for extending the OCI)
 
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Am I changing my oil too soon? I drive short distances (less than 3 miles), sub-zero temps (I live in South Dakota). I know that one benefit of synthetic is cold start up protection. With this type of driving, which I consider "sever", will PP hold up to 7500 OCI's? I am interested in cold start protection and saving $'s. Vehicle is a 2005 Dodge Grand Caravan with 3.8 motor.
 
Originally Posted By: otis24
Am I changing my oil too soon? I drive short distances (less than 3 miles), sub-zero temps (I live in South Dakota). I know that one benefit of synthetic is cold start up protection. With this type of driving, which I consider "sever", will PP hold up to 7500 OCI's? I am interested in cold start protection and saving $'s. Vehicle is a 2005 Dodge Grand Caravan with 3.8 motor.
I live in Michigan and our winters are just as cold and I am going to run 12.5k on Mobil 1 Extended Performance...I see no reason why PP should not go the 7.5k distance, just try to go for a nice little drive a few times a week to get the oil up to operating temp and burn out any moisture that's the most important thing.
 
Originally Posted By: rclint
Anything over the manufacture recommended oil change interval would be considered a extended OCI, to me it's that simple, you can not put a mileage on it in a general anything over xxx covers this criteria, look at my Honda, normal OCI using regular old conventional is 7500 miles, so a extended OCI for me is around 15k ( I try to hit between 12k-15k) I think when you start looking, and performing the Amsoil extended OCI's then your jumping into a different league of extended drains, which from reading I have seen many use a by-pass oil filtration system, and also use oil analysis as a tool for monitoring the condition of the oil, us normal (broke) people trust that the synthetics (I'm guessing over 90% of that us is using a real world hydro-cracked dyno oil with a high additive package for extending the OCI)


+1 : ) It's not really extended at 7500 if the manufacturer suggests 7500...
 
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