New BITOGer request opinion.

[Da Game]

I just received a message from a new BITOGer and he is in need of help. So

Curley, these are great people here.

" Several years ago when I started using Mobil 1 in the wife's '97
Bonneville I believe there was only one version of it and I could usually
find it for a little less than $4 a quart. Recently the bottles and
labels have changed and I don't know which are equivalent to what I've been
using. I just changed oil recently and found I had two different
labels, half seemingly original flavor and half extended interval. I
suppose it mixes, but what do you imagine the real difference to be? I
change at 6 to 7 thousand miles in 6 to 7 months. It does turn brown but is
still translucent and I have usually only added an extra quart during
that time. The car runs great and has 144,000 miles on it. I use
whatever filter is on sale, usually Purolator, Napa, AC or Supertech and
seldom Fram. I just bought another '97 Bonneville for myself with 114,000
miles and was considering using the Wallmart synthetic in it. It had
5W-30 Castrol in it according to the window decal. It blew the i!
ntake manifold water seal the day I bought it so we had to replace the
plastic plenum and the garage flushed the pan with Napa 10w-30 for
twenty minutes and then changed the filter and same oil again and it has
stayed clean and full for a thousand miles over two months. Any advice?
This is my first message so I don't know whether it will post to
everyone. If not, how can we throw it out to the forum? Thanks, Curley"...

 

[AndyH]

The regular Mobil 1 should be just fine for a 7k interval.

Here's what Mobil says about the Mobil 1 EP (Extended Performance) oils:

quote:

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Mobil 1® Extended Performance is a new high-endurance motor oil with 36 percent more anti-wear additives and 37 percent more cleaning agents than current Mobil 1 formulations. It is a fully synthetic formulation that helps extend engine life, reduce oil breakdown and minimize engine wear -- all while helping to keep your engine clean. Improvements that add up to exceptional protection for 15,000 miles. Guaranteed.

---

You can certainly use M1 EP without issue in your Bonneville if you don't mind paying the $0.50/quart premium over the regular Mobil 1. In fact some people do just that for the extra peace of mind, and don't do extended oil change intervals with the M1 EP.

Hope this helps, and

to BITOG Curley!