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Oil additives?

Re: Oil additives?

Postby Chevy-SS » Feb 22 2021, 11:47pm

Spectreniner wrote:And that's why we use a good quality oil in the first place. So we don't have to do flushes. :lol: 8-)


Yep, totally concur. But most all oil now is at least 'good quality'. IMHO, it's the frequency of oil/filter changes that determines the amount of crud buildup in your engine. When I bought my truck (used) the guy had taken immaculate care of it externally, but he probably bought into the propaganda that you can drive 8k or 10k between oil/filter changes. So there was gunk built up. MMO cleaned it out! ;)
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Re: Oil additives?

Postby MacQ » Feb 23 2021, 12:12am

Years ago, I had a D**** truck with a 318 engine that I purchased used. That was one gunked/sludged up engine. MMO cleaned her out gently over a year's period of time.

As I said in a previous post, my use of MMO these days is most likely overkill as today's quality synthetic and dino oils do a great job of keeping an engine clean. I use Pennzoil Platinum in all my vehicles and change it every 5000 miles (or one year, whichever comes first). When I was driving a lot with my job, 97% of my miles were highway miles and the engine always reached full operational temperature every time it was used. I would go for 7500 mile OCIs. That car had 319,XXX miles on it and was still going strong until it met its death by a deer.
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Re: Oil additives?

Postby Dommieboy » Feb 23 2021, 12:51am

I agree that good quality oil will serve your engine well.
Really the only additive I have run in my engines is AMSoil engine flush. If you are able to get a vehicle new and know all the oil changes and how many miles you have put in between them, then maybe you don't need it. If you are getting a used vehicle though, you can't always account for those changes and miles and a good flush is a great thing to do when you get your "new to you" vehicle. IMO
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Re: Oil additives?

Postby Spectreniner » Feb 23 2021, 4:31am

Chevy-SS wrote:
Spectreniner wrote:And that's why we use a good quality oil in the first place. So we don't have to do flushes. :lol: 8-)


Yep, totally concur. But most all oil now is at least 'good quality'. IMHO, it's the frequency of oil/filter changes that determines the amount of crud buildup in your engine. When I bought my truck (used) the guy had taken immaculate care of it externally, but he probably bought into the propaganda that you can drive 8k or 10k between oil/filter changes. So there was gunk built up. MMO cleaned it out! ;)

Ugh bleh. Ridiculous
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Re: Oil additives?

Postby Destroyr72 [OP] » Feb 23 2021, 10:21am

MacQ wrote:Years ago, I had a D***e truck with a 318 engine that I purchased used. That was one gunked/sludged up engine. MMO cleaned her out gently over a year's period of time.

As I said in a previous post, my use of MMO these days is most likely overkill as today's quality synthetic and dino oils do a great job of keeping an engine clean. I use Pennzoil Platinum in all my vehicles and change it every 5000 miles (or one year, whichever comes first). When I was driving a lot with my job, 97% of my miles were highway miles and the engine always reached full operational temperature every time it was used. I would go for 7500 mile OCIs. That car had 319,XXX miles on it and was still going strong until it met its death by a deer.
So I just bought this 2016 Silverado. 98,000 miles on it. The service records indicate he changes the oil every 7,500. The oil on the dipstick looks clean. Would you recommend still MMO to clean the engine? And you said add it to the last 500-1000 miles before your next oil change. Seem like a lot of guys like the 5,000 interval so I think I will use that interval change myself. Sorry for all the questions. First newer truck I have ever owned so I want it to last me a long while.

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Re: Oil additives?

Postby EKinMN » Feb 23 2021, 1:50pm

I used to use Sea Foam to flush the engine, but I really do not have any conclusive proof that it did any good. And if there was residual left in the engine after an oil change, it might have actually hurt the new oil. So even though it did not hurt, I don't think it helped.

I'd probably avoid the chemicals, and just switch to a good high-mileage synthetic oil, like Valvoline Synpower HM. If it's running strong don't mess with it. And assume that if the past owner cared for the outside, he probably cared for the rest too.
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Re: Oil additives?

Postby Destroyr72 [OP] » Feb 23 2021, 3:19pm

Ok, thank you. It runs really good and the outside is immaculate. No rust anywhere. The underbody is super clean. It's a 2016. I use to run mobile 1 high mileage synthetic In my other vehicles. Never looked into Valvoline synpower HM. But I will now. Always open to new ideas and suggestions. Anything that will keep my truck running for many more miles. Is that a dexos approved as well? Image

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Re: Oil additives?

Postby tsuintx » Feb 23 2021, 3:37pm

I guess this thread took a turn to oils. Yay! It's been, what, maybe a week since the last one? :lol:

Good looking truck. My 2016 runs just fine with Mobil 1, just like all my other vehicles have in the last 20+ years when I have used it. Never used any additives, either. I've used Seafoam in crankcase on a few cars I've bought to flip and have felt a bit stuffy and had issues with idling, but results have usually been pretty negligible.
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Re: Oil additives?

Postby Destroyr72 [OP] » Feb 23 2021, 3:44pm

I hear ya. Didn't intend for this thread to go this way. Just spent a good amount of money on this truck and I don't want to mess up by doing something stupid like low quality oil. You just use Mobil 1? Not high mileage mobil 1?

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Re: Oil additives?

Postby tsuintx » Feb 23 2021, 3:55pm

I tend to alternate between the regular and high mileage.
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