Coolant ( most popular)
11-20-2018, 02:34 PM
#31
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If I'm understanding all of this correctly, the color, green, red, pink or yellow really doesn't mean a whole heck of a lot as long as it's a quality product and it made for aluminum engines.
11-20-2018, 02:57 PM
#32
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I don't have a lot of experience in this, but the MB aluminum engine crowd had basically come to the consensus that the Zerex G-05 or MB dealer antifreeze of the appropriate generation were the best/safest bet.
I'll probably stick to G-05 with the 928, but I'm always interested to see if there is new information in one of these threads.
11-20-2018, 04:20 PM
#33
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Some people seem to change for the sake of changing. With no good way to verify success or fail from a coolant brand change, my own thinking is t go with what I/we know happens to work. G-05 with distilled water going in.
Does anybody else test coolant for pH, from new to scheduled change? Cheap test strips make this pretty easy. It's the easiest way to predict when a coolant will start being corrosive.
Does anybody else test coolant for pH, from new to scheduled change? Cheap test strips make this pretty easy. It's the easiest way to predict when a coolant will start being corrosive.
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11-20-2018, 05:12 PM
#34
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That is what makes me nervous about any "new" formula. Is this really designed with the best interest of the engine or some EPA or other environmental reasons? In the late 90's oil formulations changed for the sake of the environment and we all know how that worked out.
is why I'm not eager to switch from the Prestone that I've been pouring into 928s for years.
I don't know about you, but I'm not going to be able to pick out "Ink Blue" from "Cobalt Blue" from a blue color chart much less through a 20+-year old brown reservoir.
11-21-2018, 12:28 PM
#35
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Yea, didn't mean to come off that way, it's a difficult question to ask. Same with motor oil. I see people ask: "How was your experience with X oil?" My first thought is....if the engine hasn't failed then the experience is pretty good.
Don't get me started on that GM crap and all the cars that come filled with it (not just GM unfortunately). Many claim the primary culprit of the sludging issue with that coolant was cross mixing with other coolants. That's why I spent so much time flushing my Yukon. When I pulled the pump I saw green liquid, and it was orange in the reservoir. I knowingly bought the truck with the leaking pump so the previous owner was topping off with the green stuff, not good.
That is what makes me nervous about any "new" formula. Is this really designed with the best interest of the engine or some EPA or other environmental reasons? In the late 90's oil formulations changed for the sake of the environment and we all know how that worked out.
Don't get me started on that GM crap and all the cars that come filled with it (not just GM unfortunately). Many claim the primary culprit of the sludging issue with that coolant was cross mixing with other coolants. That's why I spent so much time flushing my Yukon. When I pulled the pump I saw green liquid, and it was orange in the reservoir. I knowingly bought the truck with the leaking pump so the previous owner was topping off with the green stuff, not good.
That is what makes me nervous about any "new" formula. Is this really designed with the best interest of the engine or some EPA or other environmental reasons? In the late 90's oil formulations changed for the sake of the environment and we all know how that worked out.
Dr. Bob, I definitely need to get some of the test strips to check PH balance in all the fleet at Casa de Lockhart. Thanks for the reminder.
11-21-2018, 10:34 PM
#36
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I use factory Porsche coolant in anything that has a new engine, rebuilt top end, cooling system overhaul.
Everything else gets G05.
I never mix coolants. If I don't know what is in the car and I need to add to it, I'm going to recommend a system flush and refill. (If only a little bit of coolant needs to be added, we will add water, only.)
I always use distilled water.
The only downside to the factory coolant is the price. However, Porsche "built in" a wide margin on their coolant. When I remember, I will discount this coolant significantly....to make buying it not "hurt" as badly. Discounted, it's not that much more money than all the other coolants.
Everything else gets G05.
I never mix coolants. If I don't know what is in the car and I need to add to it, I'm going to recommend a system flush and refill. (If only a little bit of coolant needs to be added, we will add water, only.)
I always use distilled water.
The only downside to the factory coolant is the price. However, Porsche "built in" a wide margin on their coolant. When I remember, I will discount this coolant significantly....to make buying it not "hurt" as badly. Discounted, it's not that much more money than all the other coolants.
11-21-2018, 10:37 PM
#37
I use factory Porsche coolant in anything that has a new engine, rebuilt top end, cooling system overhaul.
Everything else gets G05.
I never mix coolants. If I don't know what is in the car and I need to add to it, I'm going to recommend a system flush and refill.
I always use distilled water.
The only downside to the factory coolant is the price. However, Porsche "built in" a wide margin on their coolant. When I remember, I will discount this coolant significantly....to make buying it not "hurt" as badly.
Everything else gets G05.
I never mix coolants. If I don't know what is in the car and I need to add to it, I'm going to recommend a system flush and refill.
I always use distilled water.
The only downside to the factory coolant is the price. However, Porsche "built in" a wide margin on their coolant. When I remember, I will discount this coolant significantly....to make buying it not "hurt" as badly.
Oh...........you owe me an e-mail buddy.
11-21-2018, 11:39 PM
#38
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11-22-2018, 12:29 AM
#39
11-25-2018, 08:43 PM
#42
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This discussion begets the question:
I642 is a 928 option, "Additive for Cooling Water"
What is this additive?
I642 is a 928 option, "Additive for Cooling Water"
What is this additive?