Are all HDEO good at cleaning up engines? I have been using Rotella T6 5w40 to hopefully clean up my VW 1.8T, but I keep reading about how well PP and PU is at cleaning engines. I have considered using 5w30 (vs. VW's spec of 5w40) in my engine simply because of how people rave about it. Will my engine still get cleaner using T6?
All HDEO Good Cleaners?
- Thread starter lancerplayer
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I would think HDEOs /must/ be better at cleaning an engine - imagine what would happen if the soot from a diesel were allowed to sludge even slightly.
That being said, Pennzoil Platinum / Pennzoil Ultra might be just about equal to Rotella T6 in cleanliness, but both are generally more expensive and probably don't offer as stout of an additive package in general.
That being said, Pennzoil Platinum / Pennzoil Ultra might be just about equal to Rotella T6 in cleanliness, but both are generally more expensive and probably don't offer as stout of an additive package in general.
Hi,
lancerplayer - HDEOs are not much different than PCMOs at "cleaning up engines".
In heavy diesels it is still quite a common practice to put a CJ lubricant into an engine that has been run (incorrectly) on say a CG4 lubricant in order to gently remove some build up of internal deposits. Sometimes it works enough to avoid taking parts of the engine apart in the first instance
HDEOs were and still can be best at minimising deposits rather than "cleaning up and engine" when used correctly. Some brands of HDEOs are better than others at controlling their main contaminant - soot!
Modern PCMOs of the correct specification are wonderful products - especially those that have a dual rating of say SM/CF. The Brand matters very little in real terms
lancerplayer - HDEOs are not much different than PCMOs at "cleaning up engines".
In heavy diesels it is still quite a common practice to put a CJ lubricant into an engine that has been run (incorrectly) on say a CG4 lubricant in order to gently remove some build up of internal deposits. Sometimes it works enough to avoid taking parts of the engine apart in the first instance
HDEOs were and still can be best at minimising deposits rather than "cleaning up and engine" when used correctly. Some brands of HDEOs are better than others at controlling their main contaminant - soot!
Modern PCMOs of the correct specification are wonderful products - especially those that have a dual rating of say SM/CF. The Brand matters very little in real terms
Originally Posted By: Doug Hillary
HDEOs were and still can be best at minimising deposits rather than "cleaning up and engine" when used correctly. Some brands of HDEOs are better than others at controlling their main contaminant - soot!
Modern PCMOs of the correct specification are wonderful products - especially those that have a dual rating of say SM/CF. The Brand matters very little in real terms
Perhaps, Doug, you might be able to provide a suggestion or two with a little dilemma I'm having. I recently had a Ford 300 from a 1984 F-150 rebuilt. The previous owner treated oil as a lifetime fluid. He rebuilt the engine, but never cleaned out oil galleries, put in rings upside down, and other miscellaneous little gems. It was a sludgy, leaking, oozing mess with low oil pressure.
In that, I ran a number of very low OCIs (under 3,000 miles) for about two years, I'm guessing 5 or 6 oil changes. I wanted it to be clean for another planned rebuild. I even threw one can of solvent flush in there once, knowing full well what harm could be done, but in mind that a rebuild was planned anyhow. In any case, when the engine was taken apart, it was absolutely spotless, although the oil galleries still weren't perfect.
Now, with my 1991 Audi 200 2.2L I5 Turbo, I recently did the valve cover gasket. The pictures with the valve cover gasket off are http://www.bobistheoilguy.com/forums/ubb...921#Post1943921 for your reference. Most of the deposits are hard and granular; I'm not sure if one would consider that run of the mill sludge, or what.
I've done a few short OCIs with that (unsure of the previous history of the car; I've had it for just over two years). I've used Delvac 1 ESP 5w-40, Delvac 1300 15w40, and some RP 0w-40 and Mobil 1 5w-40 for some winter use. I put Pennzoil Conventional 10w30 in after changing the valve cover gasket and running the engine for a period. Most of the time, however, it's eben on Delvac 1 and Delvac 1300. I have GC available for my next OC.
So, any suggestions or comments? I'd love to hear from Doug, but anyone and everyone else is welcome and encouraged to chime in.
HDEOs were and still can be best at minimising deposits rather than "cleaning up and engine" when used correctly. Some brands of HDEOs are better than others at controlling their main contaminant - soot!
Modern PCMOs of the correct specification are wonderful products - especially those that have a dual rating of say SM/CF. The Brand matters very little in real terms
Perhaps, Doug, you might be able to provide a suggestion or two with a little dilemma I'm having. I recently had a Ford 300 from a 1984 F-150 rebuilt. The previous owner treated oil as a lifetime fluid. He rebuilt the engine, but never cleaned out oil galleries, put in rings upside down, and other miscellaneous little gems. It was a sludgy, leaking, oozing mess with low oil pressure.
In that, I ran a number of very low OCIs (under 3,000 miles) for about two years, I'm guessing 5 or 6 oil changes. I wanted it to be clean for another planned rebuild. I even threw one can of solvent flush in there once, knowing full well what harm could be done, but in mind that a rebuild was planned anyhow. In any case, when the engine was taken apart, it was absolutely spotless, although the oil galleries still weren't perfect.
Now, with my 1991 Audi 200 2.2L I5 Turbo, I recently did the valve cover gasket. The pictures with the valve cover gasket off are http://www.bobistheoilguy.com/forums/ubb...921#Post1943921 for your reference. Most of the deposits are hard and granular; I'm not sure if one would consider that run of the mill sludge, or what.
I've done a few short OCIs with that (unsure of the previous history of the car; I've had it for just over two years). I've used Delvac 1 ESP 5w-40, Delvac 1300 15w40, and some RP 0w-40 and Mobil 1 5w-40 for some winter use. I put Pennzoil Conventional 10w30 in after changing the valve cover gasket and running the engine for a period. Most of the time, however, it's eben on Delvac 1 and Delvac 1300. I have GC available for my next OC.
So, any suggestions or comments? I'd love to hear from Doug, but anyone and everyone else is welcome and encouraged to chime in.
Hi,
Garak - You have my PM
Garak - You have my PM
dnewton3
Staff member
Garak - PM sent.
Thanks, all!
Most HDEOs are decent cleaners, but their primary benefit is that they're very good at keeping things clean.
There are many good oils that will provide good protection to that 1.8T engine. I would pick one based on its ability to protect the turbo and prolong the life of the oil-cooled turbo.
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