I saw a tube of the gm material the other day. It didn't say loctite on it, just gm.
One advantage of the loctite 518 is that they stress it is good for aluminum. So if we don't need to withstand a temperature of over 300 degrees, it may actually be better than the 510 material. And it'* available in what they call a "master gasket kit", which is a 25 ml syringe of 518 and 9 oz of the primer. $21 at mcmaster.com.
I am gearing up for my sc coupling job, that is why I am asking.
1992 green ssei. Tan leather, moonroof, power everything. 161k miles
Goodyear RSA Plus 225/60/16 VR on chromed factory crosslace rims. McGard chrome lugs.
Audio system: CD player w/equalizer, subwoofer (all stock).
Delco premium wires, NGK TR55 plugs, K&N stock style air filter. Ceramic brake pads. New rear brake tubing and proportioning valves. New wheel cylinders, front rotors and calipers. New front wheel bearings. Replaced crank sensor and harmonic balancer. Rebuilt instrument cluster. Cleaned A/C evaporator. Valve cover gaskets. Alternator. Front stabilizer links. Replaced all power steering lines and transmission lines. Cleaned MAF and IAC. New door appliques. Rebuilt steering gear. CERAMIC brake pads, I love them. I am listing all this in case someone needs advice on any of these repairs.