'fraid not, nothing about leak prevention as far as I can see, this is what Havoline say about their XLI Extended Life Coolant product
Benefits:
1. Easy maintenance
2. No inhibitor level testing required
3. Excellent cavitation protection for wet sleeve cylinder liners
4. Maximum,long life corrosion protection for aluminum, brass, cast iron, steel, solder and copper
5. Improved water pump seal life
6. Excellent heat transfer
7. Reduced hard water scale
8. Superior protection in high operating temperatures
9. Outstanding hot surface aluminum protection
10. Compatible with conventional corrosion inhibitor technologies. (Dilution with conventional technologies will reduce the extended life performance.)
As with all new product advances there are those that advise caution for older vehicles, but certainly it seems advisable to watch out for a brown sludge or gel like apprearance which indicates mixture with the old coolant residue. I see you have flushed thoroughly - so this shouldn't be a problem I guess.
Personally I would still want to change coolant every 2 years - I suppose old habits die hard
Benefits:
1. Easy maintenance
2. No inhibitor level testing required
3. Excellent cavitation protection for wet sleeve cylinder liners
4. Maximum,long life corrosion protection for aluminum, brass, cast iron, steel, solder and copper
5. Improved water pump seal life
6. Excellent heat transfer
7. Reduced hard water scale
8. Superior protection in high operating temperatures
9. Outstanding hot surface aluminum protection
10. Compatible with conventional corrosion inhibitor technologies. (Dilution with conventional technologies will reduce the extended life performance.)
As with all new product advances there are those that advise caution for older vehicles, but certainly it seems advisable to watch out for a brown sludge or gel like apprearance which indicates mixture with the old coolant residue. I see you have flushed thoroughly - so this shouldn't be a problem I guess.
Personally I would still want to change coolant every 2 years - I suppose old habits die hard
