# Longlife Coolant, 5yr/150k by Peak

**URL:** <https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526>\
**Category:** Maintenance/Repairs\
**Created:** [August 24, 2009, 7:02pm UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526 "2009-08-24T19:02:58Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![sciconf](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@sciconf](https://community.cartalk.com/u/sciconf)\
**Post date:** [August 24, 2009, 7:02pm UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526/1 "2009-08-24T19:02:58Z")

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87 Integra, 147k, does 3k annually  
  
  
  
 Am I safe to leave the coolant for 5trs w/o drain & refill?  
  
  
  
 I just filled it up with Longlife Coolant, 5yr/150k by Peak.

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**Author:** ![Docnick](https://avatars.discourse-cdn.com/v4/letter/d/ecae2f/32.png) [@Docnick](https://community.cartalk.com/u/Docnick)\
**Post date:** [August 24, 2009, 7:23pm UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526/2 "2009-08-24T19:23:07Z")

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At 3000 miles annually, you will only have 15,000 miles on the coolant by the time 5 years rolls around. I would leave it in that long, and check it regularly.

If you drove 15,000 miles per year, I would change it out at 3 years. Most of us are skeptical about the long life claims!

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**Author:** ![sciconf](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@sciconf](https://community.cartalk.com/u/sciconf)\
**Post date:** [August 24, 2009, 7:41pm UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526/3 "2009-08-24T19:41:56Z")

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Thanks - very sensible reply.  
I appreciate it.

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**Author:** ![andrew\_j](https://avatars.discourse-cdn.com/v4/letter/a/91b2a8/32.png) [@andrew\_j](https://community.cartalk.com/u/andrew_j)\
**Post date:** [August 24, 2009, 10:11pm UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526/4 "2009-08-24T22:11:33Z")

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Your car is pretty old and likely cooling system. I think 5yr/150k is likely fine however you likely will encounter a failure of the cooling system unrelated to cooling system on the way. During the cooling system issue you likely will get new fluid installed.

Great car by the way.

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**Author:** ![Xebadaih](https://avatars.discourse-cdn.com/v4/letter/x/d07c76/32.png) [@Xebadaih](https://community.cartalk.com/u/Xebadaih)\
**Post date:** [August 24, 2009, 10:16pm UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526/5 "2009-08-24T22:16:08Z")

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Yes, likely, very likely.

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**Author:** ![keith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/keith/32/5518_2.png) [@keith](https://community.cartalk.com/u/keith)\
**Post date:** [August 25, 2009, 12:52am UTC](https://community.cartalk.com/t/longlife-coolant-5yr-150k-by-peak/35526/6 "2009-08-25T00:52:24Z")

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Well, I unintentionally left the 5 year, 150k mile coolant in my 97 Nissan truck for 7 years and about 110 k miles. Didn’t hurt a thing, the coolant was still clear.

I don’t recommend going 7 years, its just that for the last 5, I only drove the truck occasionally, like weekends mostly and I sort of forgot about the coolant. Its nice to know the stuff is good though. Unlike some hear, I have no reservations about using it and keeping it the 5 year/150,000 mile life.