Is Mobil Clean 5000 a synthetic oil or a synthetic blend?Originally Posted by BADKACHINA
Mobil Clean 5000 is not a synthetic or synthetic blend. While it does offer high performance, the base stock composition is non-synthetic.
Redcap is gone...RIP
Goldcap has a better base with more esters (will handle more heat than Redcap) but much less ZDDP. Just add a small bottle of STP or Valvoline oil additive which are ZDDP additives and you are back in business. It appears calcium was boosted to help compensate for the lowered ZDDP. Calcium is a good anti-wear additive but it is not as sophisticated as ZDDP.
FYI...V-Twin has boron as it's anti-wear additive and it is equal or better than ZDDP. Redline uses a ton of moly and ZDDP and forgoes a true API rating. Amsoil seems to be reformulating and we don't know exactly what this means yet.
The real concern is if you use a conventional oil with low ZDDP...it just won't hold up nearly as well.