To change or not to change, that is the question!

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1992 Aerostar 3.0 V6 with 163,000 miles. I changed the oil Feb 2012 with a Baldwin B2 filter (fits Motorcraft FL1A, the big one) and 4.5 quarts of Meijer High Mileage 10w30 ahd a bottle of SLOB (CD2 Street Legal High Performance Oil Boost). Now after 1 year it has all of 580 miles on this oil. I did a blotter and it is very clean. I did the spoon crackle test (put drop of oil on spoon and flame under to see if there is water in the oil) for moisture and it did not crackle. Seems to me that it would be a waste of oil to change it out. Probably good for another 6 months or so anyway, until we start driving it more (if my daughter would ever get her license and have anywhere to go).
 
Does not hurt having fresh oil on your vehicle. Personally if i was in your position i would just do the OC since its been.over a year. Not that its bad, but just gives me a small reason to change it.
 
IMO, it would be a waste to dump it. I have gone to 2 year intervals on my toys. My last UOA had trace fuel from trail use, but no moisture. Drive it without worry.
 
We've seen 2-5 year, low mileage OCI's thast were just fine.

Your tests are telling you the same....just leave it and don't waste good oil.
 
The real answer is 'it depends'. If they were 580 1 mile cold start trips, change it. If they were 29 20 mile trips, you can go a couple more years. I'm guessing it falls somewhere in between.
 
Originally Posted By: TallPaul
1992 Aerostar 3.0 V6 with 163,000 miles. I changed the oil Feb 2012 with a Baldwin B2 filter (fits Motorcraft FL1A, the big one) and 4.5 quarts of Meijer High Mileage 10w30 ahd a bottle of SLOB (CD2 Street Legal High Performance Oil Boost).


Wow, another BITOGer with an Aerostar and a stash of SLOB! I've taken all of my SLOB and put it in a 5 quart oil container because all the small bottles were starting to leak.
My '94 Aero has 250K miles on it and has served me well. Unfortunately for her, she gets the $2/quart oil and the cheap PH8A-equivalent filters. Some way to pay her back for the loyal treatment she is given me, huh?
I'd say keep the oil in the crankcase and just give it an hour+ drive some time.
 
580 miles on one-year-old Meijer high mileage synthetic and a bottle of SLOB in a van old enough to drink? Leave it for at least another year or two. Unless your engine has issues that would contaminate the oil otherwise, I'd leave it until you got a couple thousand miles on this fill.
 
Originally Posted By: TallPaul
1992 Aerostar 3.0 V6 with 163,000 miles. I changed the oil Feb 2012 with a Baldwin B2 filter (fits Motorcraft FL1A, the big one) and 4.5 quarts of Meijer High Mileage 10w30 ahd a bottle of SLOB (CD2 Street Legal High Performance Oil Boost). Now after 1 year it has all of 580 miles on this oil. I did a blotter and it is very clean. I did the spoon crackle test (put drop of oil on spoon and flame under to see if there is water in the oil) for moisture and it did not crackle. Seems to me that it would be a waste of oil to change it out. Probably good for another 6 months or so anyway, until we start driving it more (if my daughter would ever get her license and have anywhere to go).


If your expecting your mileage to stay the same, I'd leave it another 2 years.
 
Originally Posted By: Kruse
Wow, another BITOGer with an Aerostar and a stash of SLOB! I've taken all of my SLOB and put it in a 5 quart oil container because all the small bottles were starting to leak.
My '94 Aero has 250K miles on it and has served me well. Unfortunately for her, she gets the $2/quart oil and the cheap PH8A-equivalent filters. Some way to pay her back for the loyal treatment she is given me, huh?
I'd say keep the oil in the crankcase and just give it an hour+ drive some time.


She gets driven about 15 miles at a crack, and the occasional short trip. I keep it out of the way so I don't have to start and move it all the time.

The oil cost me $1.50 a quart and I have 5 more qts, but that is not good reason to change. Ah, and it's the Vulcan V6, bulletproof they say.

My SLOB is repackaged in old Maxlife bottles and I printed crude labels to make sure I don't do an OC with all SLOB
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Yes the pink SLOB bottles were brittle. I am giving my Slob Stath of 12 quarts to my brother for his methanol/water injected '64 Fairlane, and his '63 stock T bird. Still have the CD2 High Mileage additive though which has about as much zddp.

An Aerostar with auto transmission still alive and well after 163,000 miles I attribute to my use of Redline D4 ATF.
 
Originally Posted By: TallPaul

An Aerostar with auto transmission still alive and well after 163,000 miles I attribute to my use of Redline D4 ATF.


I've owned four Aerostars, each making it to 250K miles or more. I haven't had an engine or transmission fail before those miles. My "secret to sucess", transmission wise, is just changing it every 30K miles with SuperTech Dexron/Mercon fluid and never towing anything, other than people, with it. The A4LD doesn't have a great reputation, but I think it just needs a little more maintenance than some others. This will probably be my last one, as good, rust free specimens are getting harder to find.
 
Originally Posted By: Kruse
Originally Posted By: TallPaul

An Aerostar with auto transmission still alive and well after 163,000 miles I attribute to my use of Redline D4 ATF.


I've owned four Aerostars, each making it to 250K miles or more. I haven't had an engine or transmission fail before those miles. My "secret to sucess", transmission wise, is just changing it every 30K miles with SuperTech Dexron/Mercon fluid and never towing anything, other than people, with it. The A4LD doesn't have a great reputation, but I think it just needs a little more maintenance than some others. This will probably be my last one, as good, rust free specimens are getting harder to find.


Certainly frequent changes are needed, but they had a reputation for trannies going out, mostly before 1992 when a transmission cooler was added. Of course you may not drive it like I do. Many times I floored it getting a 1-2 shift at 5700 rpm, which is getting up there for the Vulcan.
 
I would change it in May, after the weather warms up. This assumes you want to keep the car a while. On the other hand, if you feel like experimenting, get a UOA now and run it another year and get another UOA to compare.

aehaas
 
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