Oil test

[dkmech]

Had the oil from my Prelude tested (I now work in an oil analysis lab).

Pretty much a clean bill of health - very little wear metals, good base protection, low acidity.

Going to change oil when we've got a quiet day and then test it either every 1k miles or maybe every month. We already bought a 25l drum of Fuchs semi-synthetic oil just need to find some time to change it.

[SilentDeath]

25l must of cost a bit

Im currently working my way through 4x 5 liter bottles of the cheap stuff from lidl, cant remember the make but think its 15/40.

Interestingly I used to lose quite a bit of oil from what i suspect is the valve guildes on 1 cyclinder but that has reduced/compleatly stopped recently (although my fuel efficiency has also plumeted to exactly 25mpg for the last 3 fill ups...)

[dkmech]

I think it was just under £50. It gets quite cheap if you order it by the barrel. And since there is also another Prelude here we can run the tests on both and compare the results.

[jon bda]

25l must of cost a bit

We buy it 45 gallons (normal and semi) at a time, the fluctuation in price due to wars around the world is mad!.

[Shad]

Hmm

I get 5 litres of fully synth Castrol RS for about 35-40 quid

And I throw it away after about 300 miles

[Konan555]

Something tells me Jon_Bda will be the sort of chap to know the oil test for the old pinto engine.

Remember? Shake the filter and listen for shards of camshaft?