Mobil 1 Full Synthetic

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Icecobra

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I use Mobil one on my truck, wife's mustang, and for the last 20 years every vehicle in our fleet gets it. I run 5000 miles between changes and change oil for anything not up to the mileage every 6 months... I have never had a oil related failure in any vehicle since using Mobil one...
 

SwampKing

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I'm pushing 9,000 miles using mobile 1 oil. My oil info gauge, says 28% left. I'm wondering if that's a good gauge to go by or after what percentage is best to change.... I don't push my truck hard driving around town but if I had an option to offroad in Louisiana, I would change every 6k. In my ford Harley/lightning I ran it for 6 years no probs.
 

Chris@FreedomMotorsports

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The oil life monitors in newer vehicles are governed by a specific algorithm in the programming that is determined more by the daily use experienced by the vehicle. Severe duty and normal operating conditions can be confusing. Normal operating conditions being longer trips where the vehicle is running at a consistent speed for longer mileage, say 25-50 mile average trips.

Severe duty can be defined as stop and go city driving, very short average trips of less than 10-20 miles per trip and times when the vehicle is being used in other than normal conditions, IE: off road adventures with varied higher RPM ranges.

Because of this, the oil life monitor has nothing to do with the actual viability of the oil. Especially with full synthetic oils like Mobile 1 and AMSOIL, you CAN actually (if you are using extended intervals utilizing UOA) simply reset the monitor and go further. I have and many of my AMSOIL customers have actually had to reset the monitors when oil analysis showed that the oil had not dropped in viscosity, TBN and had little to no contaminants.

Short answer? When using Mobile 1, AMSOIL or any other true full synthetic oil. If you are doing so with the intention of changing every 4000-7500 miles, you really have nothing to worry about at all unless there are extenuating circumstances that would cause the oil to fail.
 

krww06

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I use Mobil 1 as well. I change it every 3K miles, and that means an oil change every 6-7 months. FWIW, when I did those 3K mile oil changes, the oil life monitor showed 16% the first time and 13% remaining the second time. So, like others have suggested, I don't think the monitor is taking into account the type and/or quality of oil you're using, it's just based on some formula.
 

Off Road WannaBe

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Thanks for explaining the engine life indicator I was wondering why the oil life was going down so quick iv only put on 2500 miles in 8 months and this week is the second time iv had to reset it.
Makes sense now since I only drive it from work to home and back to work once a week about 10miles round trip.

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Chris@FreedomMotorsports

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Thanks for explaining the engine life indicator I was wondering why the oil life was going down so quick iv only put on 2500 miles in 8 months and this week is the second time iv had to reset it.
Makes sense now since I only drive it from work to home and back to work once a week about 10miles round trip.

Sent from my mobile entertainment device.

In your case, with as little as you drive your truck. I would highly recommend early oil analysis testing. Regardless of the oil life monitor, when you do not drive it regularly, because of the ethanol in the gas, the engine can build up condensation from short trips especially but will do so as it cools on any trip. This condensation usually doesn't have time to negatively effect the engine as a daily driver, but can cause rust to form inside the engine in any vehicle not ran daily. Oil analysis will ensure that this isn't happening.
 

Off Road WannaBe

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Thanks for the tip clkelley. I was going to change the oil at the end of the month when I take some vacation. Ill track down a sample kit and see if there is anything going on.

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