Oil rinsing, not flushing

[kschachn]

No, I’m not experiencing or notice any engine issues. I just didn’t find much info on this topic here. I’m going to avoid supplemental chemical treatments when possible.

Lots of good responses from all of you. My 1 time rinsed used oil can top off DW’s 2007 RAV4. It has the oil burn issue and goes through 1 quart per thousand miles.

So an academic exercise.

 

[kschachn]

I bought a 97" Accord from original owner with 107,000 miles, the inside for the engine was tarnished. I remember my first Harley's owners manual said to rinse out the oil tank with kerosene; so I dump in some engine flush before every oil change and I throw in about a gallon of diesel, (can't get kerosene anymore) to rinse out what's still in the oil pan. I also flush out all the hoses to the relocated filter and the oil cooler. I fill with Molygen 5W-40 (because for some reason, they won't sell 10w-40 in the U.S.) & a bottle of Ceratec / Wix51515 (not XP). In 1 year or 3K miles I repeat. The tarnish is all but gone and the engine runs very well. The oil stays nice and clean for months, not minutes. Some may think it's a waste of oil but an engine costs much more and I drive like I stole it

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Whatever next. My '96 Accord has over 300k, I wonder if I should start doing this?

 

[Patman]

I bought a 97" Accord from original owner with 107,000 miles, the inside for the engine was tarnished. I remember my first Harley's owners manual said to rinse out the oil tank with kerosene; so I dump in some engine flush before every oil change and I throw in about a gallon of diesel, (can't get kerosene anymore) to rinse out what's still in the oil pan. I also flush out all the hoses to the relocated filter and the oil cooler. I fill with Molygen 5W-40 (because for some reason, they won't sell 10w-40 in the U.S.) & a bottle of Ceratec / Wix51515 (not XP). In 1 year or 3K miles I repeat. The tarnish is all but gone and the engine runs very well. The oil stays nice and clean for months, not minutes. Some may think it's a waste of oil but an engine costs much more and I drive like I stole it

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That does more harm than good because now on the next interval you still have some residual engine flush and diesel in there and those aren’t doing your engine any good

 

[Donald]

Did a search with no significant results.

In a previous vehicle, I performed 2 engine flushes using a brand name Engine flushing agent. This is the type of product where I pour it in the engine, run it for a number of minutes, then drain. Refill with new oil and filter.

Fast forward to now, I thought about not flushing, but instead rinsing. And what I mean by rinsing: First, drain out old oil, refill with new oil and filter (Call this Batch 1) and run the engine for a number of minutes, then drain. Second, refill with new oil and filter (Batch 2). I'm also intending to keep Batch 1 oil and filter set for a future rinse.

H
What are you trying to accomplish? Have you pulled the valve cover and looked?

 

[Hohn]

That does more harm than good because now on the next interval you still have some residual engine flush and diesel in there and those aren’t doing your engine any good

Exactly. The solution to contamination is not more of it from a different source.

 

[OilStained]

H
What are you trying to accomplish? Have you pulled the valve cover and looked?

I wanted to perform a cleaning with a cost effective oil, then refill it with a higher tier oil. This oil could be recycled/reused on another vehicle. This was before I learned about Valvoline restore & protect. This matter no longer applies since I have switched. Valvoline Restore and Protect simplified things a lot.

 

[Donald]

I wanted to perform a cleaning with a cost effective oil, then refill it with a higher tier oil. This oil could be recycled/reused on another vehicle. This was before I learned about Valvoline restore & protect. This matter no longer applies since I have switched. Valvoline Restore and Protect simplified things a lot.

Why not just run a regular synthetic oil all the time unless you have looked under the valve cover and see some sludge?

 

[CleanSump]

I remember my first Harley's owners manual said to rinse out the oil tank with kerosene;

My 1975 Sportster too. We rinsed out the tank and did not run the kerosene in the engine. They had dry sumps and the oil tank was above and behind the engine and would get gooky on the conventional oils we had back then. It was more like removing and cleaning the oil pan on a typical wet sump car.

 

[OilStained]

Why not just run a regular synthetic oil all the time unless you have looked under the valve cover and see some sludge?

I appreciate your input.
As I said: “This matter no longer applies since I have switched [to Valvoline Restore and Protect].”