I've looked at a few used oil analysis, and there have been instances where this oil was run 7,500 miles (I beleive in a Saturn) with some very decent results. But I was wondering if one can expect a 6,000 mile run in a Ford Modular V8 with high sulphur gas (500 ppm), or would that be too much?
I realise this is a Group II+, but it's the sulphur that worries me.
Also, does anybody happen to know what the TBN is of the SM/GF-4 rated Pennzoil Conventional 5w20? The SN/GF-5 isn't yet available, and I cannot find an information sheet for the old stuff. Having said that, I use MMO at every fill up (225 ml/7.6 oz for 72L/19 gallons). Would that lower the TBN or is that not something to worry about?
Before I try the Motorcraft Full Synthetic 5W-20 in my stash, I just want to try a conventional 5W-20 for experimental purposes, and Pennzoil Conventional is the only one available. On a side note, it costs $6.89 a quart for Pennzoil Conventional (in 5W-20 or 10w30 flavour) here from the Chrysler dealership. Only other place that sells it is Ace Hardware for $6.20 a quart.
I reckon you guys get Pennzoil Platinum or Pennzoil Ultra for that price (PP costs $11.55 a quart for 5w30 here)!
Also, does anybody happen to know what the TBN is of the SM/GF-4 rated Pennzoil Conventional 5w20? The SN/GF-5 isn't yet available, and I cannot find an information sheet for the old stuff. Having said that, I use MMO at every fill up (225 ml/7.6 oz for 72L/19 gallons). Would that lower the TBN or is that not something to worry about?
Before I try the Motorcraft Full Synthetic 5W-20 in my stash, I just want to try a conventional 5W-20 for experimental purposes, and Pennzoil Conventional is the only one available. On a side note, it costs $6.89 a quart for Pennzoil Conventional (in 5W-20 or 10w30 flavour) here from the Chrysler dealership. Only other place that sells it is Ace Hardware for $6.20 a quart.
