I have to chuckle.
The car mags take junkyard 5.3s with 150,000 miles, slap on a Chinese turbo, and keep cranking up the boost to 700 hp and it doesn't blow.
And this guy is worried about Group III vs IV and V.
Even oils like German Castrol or Amsoil Signature that have large percentages of Group IV base oil use group II and/or group III in their formulation because they hold onto the additive package better than Group IV or V.
I'll run my "blends" of group III, IV, and V all year long and know I'll never see an oil related failure.
You could use the cheapest Dexos 0w-20 available and run it for the full length of the OLM (which on the 5.3s is about ~7500 in ideal conditions) and get 300k plus out of that motor. What more are you looking for in a "true" synthetic?
Originally Posted By: nascarnation
I have to chuckle.
The car mags take junkyard 5.3s with 150,000 miles, slap on a Chinese turbo, and keep cranking up the boost to 700 hp and it doesn't blow.
And this guy is worried about Group III vs IV and V.
No kidding. It's a gosh darn Chevy. It'll run on salad dressing, let alone group III synthetics.
Originally Posted By: zuluplus30
You could use the cheapest Dexos 0w-20 available and run it for the full length of the OLM (which on the 5.3s is about ~7500 in ideal conditions) and get 300k plus out of that motor. What more are you looking for in a "true" synthetic?
This post does not belong on BITOG! It makes too much sense!