55 replies to this topic

[99obw]

Thanks for the interesting post! Can you tell me how much the oil filter influences this type of analysis?

To be honest, that is a very complex subject and I doubt I could do it justice. Search on BITOG.

FWIW, I prefer to use oversized filters with good filtering and good quality construction. Amsoil, Mobil 1, Purolator.

[dreaminlegacy]

Royal Purple

[TurboSPFI]

Royal Purple w/ K&N oil filter with Filtermag

[langosta39]

I checked out BITOG and there is some pretty interresting stuff to be read. I was hoping to find a recommended oil and filter type, but instead I found tons of information that could potentially be much more valuable. One of the more intriguing things I found is a table of oil brands/weights and what their actual viscosities are. He is currently working on an oil filter performance guide and I hope it includes filtering capability rather than just flow rates. I might just spring for a oil test kit in a few thousand miles, if it could save me $$ by extending my intervals that would be great.

andy

[gbrand]

prolly more important that you change on a regular basis with the filter than any particular brand that meets the spec for your car. I have been running Castrol in all my vehicles for last 20 years, the insides are very clean if any disassy is done. In the 91 Legacy 2.2 I use 10W-40 most of the year but in the 90++ Texas summer use 20W-50 per owners manual, with Walmart filters, change at 2500 miles. At almost 248K on the engine still not using oil!

[NV Zeno]

I've got almost 300,000 miles on my car, and over that time I've used everything from that $2.99 gallon jug stuff (I think it used to be called "Turbo XT") at Target, to all the major brands except Pennzoil. No synthetics, either.

I just change it every 5000 miles or so, and use a genuine Subaru oil filter. I've never had any engine problems.

Just my 2 bucks

Oh yeah, I forgot to add:

Doesn't drip (unless I goof something up at change time:lol: ) or consume any oil.