1988 Cadillac Brougham Rotella T5 10w-30 4,356 mi

[SS1970chrysler]

1988 Cadillac Brougham 307 V8 4bbl/ auto
Rotella T5 10w-30 + Bosch Premium filter

"It's another good report for this Olds 307 V-8. In fact, this is the best of the three we've seen so far. Wear metals dropped again after a longer oil run and there was nothing in this sample that would point to a mechanical problem in the works. It will be interesting to see if the change in your commute has any effect on wear. It might bring metals up a little, or maybe not. 24 miles in a day is still a quite a bit of use. Insoluble were fine at 0.3%, showing good oil filtration. The viscosity was on target for a 10W/30. Try going up to 5,500 miles next time."

Miles on oil- 4,356
Miles on car- 119,864
Sample date- 07/20/2013
Qts added- 4

Element- current- prev1- prev2

Aluminum- 18 19 23
Chromium- 2 3 5
Iron- 56 76 140
Copper- 3 3 6
Lead- 10 12 28
Tin- 0 0 1
Molybdenum-72 93 11
Nickel- 1 1 0
Manganese- 1 1 2
Silver- 0 0 0
Titanium- 1 3 30
Potassium- 6 2 4
Boron- 39 45 8
Silicon- 12 10 10
Sodium- 38 67 298
Calcium- 2976 2681 2306
Magnesium- 15 16 19
Phosphorus-1087 885 854
Zinc- 1310 1021 1081
Barium- 0 0 0

SUS Viscosity@210 F- 60.3 59.5 66.2
CST Viscosity@100 C- 10.29 10.08 11.93
Flashpoint in F- 400 395 400
Fuel%- Antifreeze%- 0 0 0
Water%- 0 0 0
Insolubles%- 0.3 0.5 0.5

 

[crazyoildude]

those engines are like the Ford/Mercury 4.6 they too run forever really really good engines. sometimes they leak a little but run great

 

[mount]

sort of off topic, but what do you see for mileage with this?

 

[SS1970chrysler]

Originally Posted By: mount
sort of off topic, but what do you see for mileage with this?


16-18 in my current commute. I do get stuck in lots of construction zones.

 

[crazyoildude]

I have an 89 with the olds 307 v8 5.0 litre
and two 79 devilles with the Cadillac 425 v8 7.0 litre
1 70 deville with the 472

 

[JAG]

Those are high wear rates but I don't see any contamination causes for it.

 

[KCJeep]

I had one of these in an 87 Caprice Wagon, the wagons were made in the Olds plant and had the 307 instead of the Chevy 305. It was a great old soldier.

I see 4 quarts top off? Was it all T5? I don't know where the moly is coming from unless it was a different top off oil.

 

[SS1970chrysler]

Originally Posted By: KCJeep
I had one of these in an 87 Caprice Wagon, the wagons were made in the Olds plant and had the 307 instead of the Chevy 305. It was a great old soldier.

I see 4 quarts top off? Was it all T5? I don't know where the moly is coming from unless it was a different top off oil.


Top off oil was AXT 10w-30 from Family Dollar. I've run it before as the fill in my old Granada (RIP). It was decent stuff.
I have a shelf of ST, AXT, and Pronto 10w-30 qts in my garage for top-offs on all my cars. I refill them from 5qt jugs.
I'm really liking the insolubles difference in my recent switch to Bosch filters over AC and store brands.

 

[Norm Olt]

88 Brougham, 63 Newport, 72 Fury III, 62 LeSabre...

You really like the really modern stuff almost as much as I do, huh! That's like one airbag (maybe two?) total...

With that Granada(RIP) you've also shown an affinity for all the BIG THREE: FoMoCo, MoPar and GM.

CHEERS!

 

[coachditka]

Is it a Merlot Bro-ham?

Or that new color called Muscatel?

.

 

[SS1970chrysler]

Originally Posted By: Norm Olt
88 Brougham, 63 Newport, 72 Fury III, 62 LeSabre...

You really like the really modern stuff almost as much as I do, huh! That's like one airbag (maybe two?) total...

With that Granada(RIP) you've also shown an affinity for all the BIG THREE: FoMoCo, MoPar and GM.

CHEERS!


My favorites are the Chryslers, but GM and Ford made some cars I like as well. For work use, I get whatever is the best deal that fits my needs and abilities.
No airbags here. These cars got the job done in their day. Others moved on, but I kept driving them.

 

[vintageant]

Any idea why iron was so high 2 changes ago?

 

[Clevy]

Originally Posted By: vintageant
Any idea why iron was so high 2 changes ago?



Likely corrosion from sitting for so long before being resurrected.
Good on ya for keeping the old girl going. I bet its a smooth highway ride isn't it

 

[SS1970chrysler]

Originally Posted By: vintageant
Any idea why iron was so high 2 changes ago?


I suspect that was the remainder of the oozing goo that drained out when I got the car.

Originally Posted By: Clevy

Likely corrosion from sitting for so long before being resurrected.
Good on ya for keeping the old girl going. I bet its a smooth highway ride isn't it


This one had about 4k on the oil in it when bought and was nearly 2 qts low then. The guys at the junkyard did use this one as a parts-runner from time to time.
It rides and drives great, even the Air-ride system still works perfectly.

That first OCI was how I found the oil pan gasket leak which has since been repaired. It's handled 500-600 miles per week with no troubles.