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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDealer told me G30 coolant ?
Leading reported evidence
Use distilled water
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that contain suggestions
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Suggestion
If you are just topping it off, use distilled water.
Leading evidence: 'Use distilled water' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use distilled water' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion
I called my Porsche dealer and asked if I could use a VW/Audi coolant to top off in my car as there is a dealership close by.
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10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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I just need to top off my coolant, so I go to a local p-dealer and he hands me G30. "I was under the impression we need G12 ?" I ask. He goes to the back, comes back, and says he has not sold that in many years. So, I ask if they are compatible, he suggest I just flush the entire system and replace it all..then he whispers and suggest i just take a sample of what is in the car now and mix them together in a bottle and see what happens. Neither suggestion leaves me with much confidence. Anyone out there using G30 or mixed it with G12 ? On the plus side there were some sweet 991s to drool over while I was there.
Pentosin G12 (the pink stuff you're accustomed to that came in your 996), and G12+ (purple, replaced the pink G12 in 2003 or so) formulas can be mixed no problem. But, if it's been 4 or more years/50k miles since your last flush, now would be a good time to do so.
The "G30" stuff is the same as G12, it's just made by a different manufacturer than Pentosin, but it can be mixed with the G12 without issue.
I called my Porsche dealer and asked if I could use a VW/Audi coolant to top off in my car as there is a dealership close by. He said as long as it's the pink stuff I will be fine. I bought G012A8GIG for $25 a gallon.
