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Joined: Jan 2002
Posts: 2,841
C
'Bolter
'Bolter
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Joined: Jan 2002
Posts: 2,841
Hey Yall.......
Yes, alive and doing quite well. I'd like to change from non detergent to detergent in my 235. What is the best method. Haven't dropped the pan for 3-4 years but last time I did it was cleaned out completely.

Should I drop and clean the pan, change the filter and simply load up the engine with some 30w detergent?



Craig

My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
Joined: Jul 2004
Posts: 5,708
A
'Bolter
'Bolter
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Joined: Jul 2004
Posts: 5,708
Craig,

It is no big deal to stick new detergent oil in your rig. The only concerns would be that this new oil would loosen up any old gunk and tend to plug small orifices and/or a oil filter. I personally don't think the detergent additives in the modern oil are that aggressive.

The oil has components in it that encapsulate any contaminant and hold it in suspension so it can be flushed when you drain your oil. That is why oil turns black...it's all the junk the oil is holding within itself, junk that isn't deposited on the interior of the engine.

All this BS aside, I would put your new oil in along with a new filter and run it for a thousand miles or so. Then drain it and replace the oil and filter and follow the regular drain schedule.

Stuart

Joined: Jan 2002
Posts: 2,841
C
'Bolter
'Bolter
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Joined: Jan 2002
Posts: 2,841
Eureka?
I think I remember you back when I was more of a regular on Stovebolt. During May I'll be driving the goat through Eureka from Bend, or. Went to CR and Humboldt during late 60's/70's

So since I've cleaned out the pan a couple times before, just skip dropping it?


Craig

My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
Joined: Jul 2004
Posts: 5,708
A
'Bolter
'Bolter
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Joined: Jul 2004
Posts: 5,708
Craig,

I sure wouldn't go to the bother to drop the pan especially since you've done it recently. Swapping from non-detergent to detergent isn't a real traumatic event.

Drop me a note when you're in the area and we can swap BS.

Stuart

Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269

If you cleaned the pan recently, I agree with Stuart.

However, if the engine has not had the pan cleaned recently, I think I would go through the effort of cleaning the pan before switching to detergent oil. This is just precautionary and might be unnecessary (as Stuart suggests).


Joined: Jan 2002
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C
'Bolter
'Bolter
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Joined: Jan 2002
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Well it's been probably 3 years or 1500 miles since I dropped it. What is the most popular 30w detergent oil to use?



Craig

My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
Joined: Jan 2007
Posts: 83
H
Wrench Fetcher
Wrench Fetcher
H Offline
Joined: Jan 2007
Posts: 83
I agree with these guys, if you only have 1500 miles since cleaning the pan just change to the detergent oil. I am using the Rottella T


Moderated by  Phak1, Woogeroo 

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