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street + track oil question

usage:
1k street miles per month
40 track miles per month

requirements:
must be 0w20
must meet oem specification to not void warranty
must be less than $10/qt

any suggestions?
please reply in the following manner if possible:
brand
reason
estimated oil change interval for my usage

Thanks

p.s. I wanted to try to mazda with moly but the local dealer wanted $9.70/qt so I'm back to the drawing board.

Interested in responses to this as well
. Sub'd.

Have you tried Motul 300V?

300V is a little bit out of his specified price range... unfortunately. $10/qt prices him out of all the top tier stuff.
@autobrz: What is your planned OCI?

It's ~$6 over the specified range, but seeing as there will be track usage in Texas, I figured it was worth asking.

Eneos 0w-20 At Oakos Automotive is $54 for a 6 quart case.

Quote:

Originally Posted by CSG Mike (Post 1320165)

300V is a little bit out of his specified price range... unfortunately. $10/qt prices him out of all the top tier stuff.
@autobrz: What is your planned OCI?

I don't like changing oil so the closer to 7.5k the better.

Also, if a more expensive oil can last longer for me, then it is still a good deal if all the less expensive oils need to be changed more often. $10/qt is a requirement I came up with without thinking about the effect of OCI on expenses. So what are my options if considering any price?

Quote:

Originally Posted by SubiePig (Post 1320177)

Eneos 0w-20 At Oakos Automotive is $54 for a 6 quart case.

why and how often would you change it?

Quote:

Originally Posted by autobrz (Post 1320194)

300V is going to be around 15-17/qt shipped, but it is a top shelf oil.

I run a UOA on every oil change on my own car (s2000), and I run it for 10k miles between changes, although the UOA says I can run it for longer. The 10k includes plenty of redlining, canyoning, and tracking, and the car sees desert heat during track days in the summer (as high as 120F ambient).

I recommend you determine your OCI via UOA, as everyone's experience is a bit different. If you buy them bulk, theyre $18 each, +10 for TBN tests.

Here are some 300V UOA on the FA20.

Ranatsu - BRZ Motul 300V HR - 4,801 miles (half life check)

lordtakuban - FRS Motul 300v 2nd oil change - 6k miles

I use eneos 0w20 sustina. Very happy with it and very affordable.

Quote:

Originally Posted by autobrz (Post 1320199)

why and how often would you change it?

I put it in at my 7500 mile oil change and have not changed it yet. I am going to change it at 15k and get it analyzed. My car is mainly highway, driving 8 miles to work in the morning, and 1-2 autocrosses a month. If they say I can go longer ,which I am sure they will, I will probably bump it up to 10k between changes.

ah. autocross not the same as 20 min sessions...