Piston Slap: A One-Size-Fits-All Coolant?

TTAC Commentator ErikStrawn writes:

Over the years I’ve tinkered with a bunch of different cars. Back in the day, you could put green ethylene glycol coolant in every car and it worked fine. If you had a car with the brand new DexCool, it was recommended to drain it and refill with the green stuff. Then some manufacturers went to the red stuff, and VW/Audi went to some other stuff that sludges up if mixed with the green stuff.

A couple years ago I bought an insurance auction VW Beetle TDI, and when I replaced the front end/radiator/etc., I flushed the engine out with water and switched the car to traditional green coolant.

My ’06 Mustang has 140K on it, and living in a constant state of having too many projects, I’ve neglected to change it until now. I’m of a mind to flush it out and run green coolant, but I know aluminum motors aren’t exactly tolerant of the green stuff.

I intend to transition my entire fleet to one coolant. What is a good one-size-fits-all coolant that is readily available? I’m in Oklahoma, and it freezes here, so running straight water is not an answer. Should I stick with the green stuff and replace it more religiously?

The Mustang is bone stock and ultra-reliable, so I don’t want to run coolant that has a propensity to turn acidic and erode the cooling passages. Is the red stuff any better? What is it called and can I find it at a truck stop at 3 a.m.? Does VW’s coolant have any advantage?

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Piston Slap: Mad Vulcan Powah? (Part II)

Tony writes:

Sajeev,

My new wife brought to the marriage her ’07 fleet-queen Taurus. She’s not a car pamperer by any means, but she does change her oil. This car got flogged like a racehorse in its previous life. Its body tightness is well-nigh gone, it unpredictably emits a strange unidentifiable groan from the depths of the dashboard center on moderate acceleration, the dime-size floormats are practically ground into dust, and the trunk barely agrees to open even when unlatched.

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Piston Slap: Improper Engine Warm Up Procedure?

TTAC Commentator Arthur Dailey writes:

Sajeev,

Thanks very much for posting my question. Your answer and the comments from others were most informative. How about another?

We now have only 2 licensed drivers in our home. We do however have 3 licensed cars in the driveway. Please do not ask about the project car in the garage. 2 of the cars are our ‘daily’ drives, the 3rd is used primarily on weekends. We live less than 3 minutes from a 400 series highway in Ontario. That means that the cars can be required to reach highway speed before they are ‘warmed up’.

My normal practice last winter was to get up, start all the cars, turn off all possible drains on the batteries. Then take the dog to the park across the street, stretch our legs and let him do his business. After about 10 minutes we return. I then turn on the heater/defrost on the 2 cars that we will be driving and scrape/brush them. When this is completed, I turn all 3 cars off and go back into the house to get myself ready for work. You may all remember what last winter was like and the upcoming winter is supposed to be similar.

Now I understand that idling is environmentally irresponsible. And possibly against by-laws in some areas. That however is a discussion for another forum.

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Piston Slap: Cooling to the MAXX? (Part II)

CJ writes:

My name’s CJ I have a 04 (Malibu MAXX) with a 3.5 V6 and I have the same problem with the car running hot ( as Part I) but here’s the kicker :when the a/c is on the it runs normal, completely normal under both situations. I’m thinking fan switch, but the radiator sounds plausible. What’s your take and is there something in between all this that I’m forgetting?

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Piston Slap: Sucking At Fluid Changes?

Longtime TTAC Commentator ajla writes:

Hi Sajeev,

I do a more through job at the time of purchase, but every year after I do a drain/refill on the radiator and replace some transmission fluid by using my fluid extractor to vacuum up as much ATF as possible through the dipstick tube.

I know that I’m not getting all the fluids exchanged this way, but my question is how much of a positive impact is this regiment actually having on my cars? Am I just wasting my time? I haven’t suffered a mechanical failure since I started doing this, but I don’t know if that proves much.

Keep in mind that the vehicles I tend to own are 20 to 30 years old.

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Piston Slap: See the USA in Your K-I-A?

Phil writes:

Hello Sajeev,

I have a question related to maintenance on a 2011 Kia Optima SX Turbo. It currently has 45k miles, and I have owned it for only 4 months (had 20k when I took ownership of it). As you can see, it is driven a whole lot, almost exclusively on the great interstates of the Southeastern US of A. I average 5-6k per month. I am an outside sales rep. and drive from SC to MS and everywhere in between weekly.

My question is this:

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Killer Coolant Wars: France Blocks Mercedes Registrations

The fight over the flammable refrigerant takes a new twist. France refused to register Mercedes A-Class, B-Class and SL cars assembled since June 12, even though German authorities have approved them, a Daimler spokesman told Reuters.

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Piston Slap: Cooling to the MAXX?
Scott writes:

Hello –

Saw a Dex-cool question you posted previously, and figured I would try my own. We have a ’06 Malibu Maxx SS. Basically the car runs hot, but not all the time. I have been religious about flushing the cooling system and using only the correct fluids.

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Piston Slap: Mad Vulcan Powah? (Part II)

TTAC commentator Felix Hoenikker writes:

Sajeev,
Thanks for the post. At the end of March, I bit the bullet and replaced the right cylinder head with a rebuilt one from Advance Auto. With my on line discount and a new head gasket, the total parts cost was under $200 plus a day’s labor.

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Piston Slap: Mad Vulcan Powah?
TTAC commentator Felix Hoenikker (yes, really) writes:

Dear Sajeev,

As a fellow Panther owner, I am seeking advice on the disposition of another Ford product. My 24 year old son just bought a new to him car and returned my 2000 Ford Taurus with the 3L Vulcan overhead valve engine to me. At 206K it runs great, but has one issue. Combustion gases are entering the cooling system and periodically venting through the coolant de-gassing tank.

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Piston Slap: Too Cool, or Dex-Cool?

Nate writes:

Ok, you asked for input and I’ve got a question about my 2003 Cadillac CTS. I figure I’m more likely to get a reliable answer from you and the best & brightest of TTAC than the goof balls at Car Talk (this letter is from February-SM), so I’ll ask.

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Piston Slap: A Lack of H-Town Heating

TTAC commentator kericf writes:

Sajeev,

I have been a previous emailer with some questions about my Rodeo. Now I turn to you in need of help with my wife’s 2005 Nissan Pathfinder (115k miles). The HVAC system doesn’t emit heat properly. A google search of the problem reveals I am certainly NOT the only person dealing with this problem.

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  • EBFlex "I'd add to that right now, demand is higher than supply, so basic business rules say to raise the price."Demand is very low. Supply is even lower. Saying that demand is outstripping supply without providing context is dishonest at best.
  • IBx1 Took them long enough to make the dashboard look halfway decent in one of their small trucks.
  • Mcs You're right. I'd add to that right now, demand is higher than supply, so basic business rules say to raise the price. The battery tech is rapidly changing too. A battery tech in production today probably won't be what you're using in 2 years. In 4 years, something different. Lithium, cobalt, and nickel. Now cobalt and in some cases nickel isn't needed. New materials like prussian blue might need to be sourced. New sources might mean investing in mines. LMFP batteries from CATL are entering production this year and are a 15% to 20% improvement in density over current LFP closing the density gap with NCA and NCM batteries. So, more cars should be able to use LMFP than were able to use LFP. That will lower costs to automakers, but I doubt they'll pass it on. I think when the order backlogs are gone we'll stop seeing the increases. Especially once Tesla's backlog goes away. They have room to cut prices on the Model Y and once they start accumulating unsold vehicles at the factory lot, that price will come tumbling down.
  • Acd Fifteen hundred bucks for OnStar makes some of the crap Southeast Toyota Distributors and Gulf States Toyota forces their customers to buy seem like a deal.
  • EBFlex Remember when Ford was all self pleasuring about the fake lightning starting under $40k? We all knew it was BS then and that Ford was taking a massive loss just to make that happen. This solidifies that.