I know I have probably committed a cardinal sin but I changed my Amsoil S2K oil after only 3K miles / 6 months AND I had a bypass filter. It was my first run using this oil so I didn’t feel too comfortable using it for a year or more. Also this was my first ‘extended’ interval, ever. I was your typical 3K/3-months type of guy, until I stumbled in to this site. So for me, to even go 6 months, was a big leap of faith. I’ll do better next time.
A brief history on the Jeep:
It’s a 2002, 4.0 Jeep Wrangler. I did its first oil change at 2K miles (factory oil) and then put it on a strict Mobil1 10W30 diet until the odometer read 10K miles (with a Mobil1 oil filter and OEM air filter). At 10K I switched to Amsoil 0W30 (TSO) and added the Amsoil dual remote bypass filter (BMK-13). What can I say; I got sucked in to the whole Amsoil marketing and fell victim to the Amsoil juggernaut
(just joking, I actually like their products and most of my car runs off them: T-case, diffs, PS).
My only concern was that once I installed the bypass filter kit, due to its high positioning, the oil pressure now takes 3 to 4 seconds to register; before it was instantaneous. The Lead seems ~avg. so I guess I should not worry about it too much.
Starting Feb, the car will sit in a garage 5 days a week and I will only use it on the weekends. I’m thinking of switching to the Amsoil’s S3K 5w30 or Delvac1 for that reason. Is that a good idea?
Here is the Blackstone report - I also did a VOA on the Mopar tranny fluid; it’s in the VOA section. I had to find out what was in it; it was keeping me up at night
. Please check it out.
First column is my sample / second is the universal avg for 4K miles
A brief history on the Jeep:
It’s a 2002, 4.0 Jeep Wrangler. I did its first oil change at 2K miles (factory oil) and then put it on a strict Mobil1 10W30 diet until the odometer read 10K miles (with a Mobil1 oil filter and OEM air filter). At 10K I switched to Amsoil 0W30 (TSO) and added the Amsoil dual remote bypass filter (BMK-13). What can I say; I got sucked in to the whole Amsoil marketing and fell victim to the Amsoil juggernaut
- Makeup oil: 1/2 quart – It never did this with Mobil1@3K
- Oil sump with the new bypass configuration: 7.5 quarts (up from 6)
- Oil filter(s): Amsoil bypass (BE-90) & Amsoil full-flow (SDF-15)
- Air filter: OEM (paper) – I tried the Amsoil one but the fit was really bad
- Type of driving: 90% city, 9% highway and 1% off-road – Most of my driving consisted of short trips, in the range of two to three miles per trip.
- Temperature range: 30F to 90F (from July 03 to Jan 04)
- Driving style: I go pretty easy on it even though it does see the occasional redline and off roading. I also let it warm up 3 to 5 min before driving it. Shifts are usually at or under 3K RPMs.
- Fuel cleaner: Single treatment of Redline fuel cleaner for this OCI
My only concern was that once I installed the bypass filter kit, due to its high positioning, the oil pressure now takes 3 to 4 seconds to register; before it was instantaneous. The Lead seems ~avg. so I guess I should not worry about it too much.
Starting Feb, the car will sit in a garage 5 days a week and I will only use it on the weekends. I’m thinking of switching to the Amsoil’s S3K 5w30 or Delvac1 for that reason. Is that a good idea?
Here is the Blackstone report - I also did a VOA on the Mopar tranny fluid; it’s in the VOA section. I had to find out what was in it; it was keeping me up at night
First column is my sample / second is the universal avg for 4K miles
- ALUMINUM 1 / 4
- CHROMIUM 1 / 1
- IRON 12 / 34
- COPPER 5 / 8
- LEAD 6 / 6
- TIN 1 / 1
- MOLYBDENUM 9 / 38
- NICKEL 1 / 1
- MANGANESE 0 / 1
- SILVER 0 / 0
- TITANIUM 0 / 0
- POTASSIUM 0 / 2
- BORON 42 / 44
- SILICON 11 / 12
- SODIUM 1 / 8
- CALCIUM 2610 / 1777
- MAGNESIUM 722 / 377
- PHOSPHORUS 961 / 741
- ZINC 1155 / 891
- BARIUM 0 / 1
- SUS@210 65.9
- TBN 6
- Flash Point 405
- Fuel li>
- AntiFreeze 0.0
- Water 0.0
- Isolubles 0.3
Here is what Blackstone had to say:
quote:
Universal averages show typical wear metals for an oil from this type of engine after about 4000 miles run on the oil. Your oil was in use 3010 miles, and we found all wear from the engine to be well below average levels and in the correct balance to show normal mechanical parts inside. Air filtration (see silicon) looks okay. Your bypass filter is doing a nice job -- insolubles read below out limit of 0.3%. The TBN read 6.0, showing plenty of active additive remaining. You'll have no trouble going longer on the oil. We suggest trying 4500 miles next time.