jmattis@attglobal.net wrote:
> mike113 wrote:
> > should i buy castrol or penzoil or valvoline oil. Which brand
> > of oil do u
> > people think is good.
>
> I use Pennzoil 10W30 in the MDX, change every 4-6,000 miles.
>
> If I switched to synthethic, I'd use Mobil One 0-W20. Yes,
> it's showing better oil test numbers than 5W20.

Mobil is no longer marketing Mobil 1 0W-20. They still may be making
a 0W-20 for Honda (for the hybrids). However - there's now a Mobil 1
5W-20 on the market. Also - Mobil's datasheets show that Mobil 1
5W-30 is awfully close to being a 5W-20.

I suppose the problem some people are having with the "conventional"
5W-20 oils are that they seem to include short-lived anti-wear
additives to make it protect adequately. Mobil 1 probably doesn't
need as much and will maintain its antiwear properties longer.

> If you use 5W20 dino oil, as recommended by Honda, abandon their oil
> change interval. Testing shows this oil is shot at 3,000 miles.

What the heck is "dino" oil these days? Many "conventional" oils use
higher performance "Group II" base. Some may even be semi-synthetic
(even without being labelled as such), although the definition of
"synthetic" is a but murky these days. Ford's Motorcraft 5W-20 is
labelled as being "semi-synthetic", although it's unclear who makes
it for them (or if they change suppliers often).