Still a bit confused on oil filters in uk.I am looking for the Mann filter reference, can anyone verifie if one or the other of these are the correct filter for the twincam photo attached.These are 2 references GSF car parts gave me but im not convinced.I get the feeling 1 of those is a mk 2 Elan with the I think Isutzu engine
According to the Mann website it’s neither of those, they list W712 for the Twincam
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Brilliant thanks for that Oldelanman I had a feeling something was not rt and that ref you have given was in my head.
Maybe the ones they told me were for the TWITCAM HaHa 
cheers
G
I think the filters for a VW Rabbit are the same. I have been using the same number on my cars for years. Wix 51393
I have used Mann W712 for many years. They have Lotus listed on the box and are less than £5-00
at the local car parts distributor.
Eric in Burnley
1967 S3SE DHC
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Yes Eric I am picking 4 up today from GSF car parts at £3.50 each a bargain
The Mann website is certainly clear that the W712 is the appropriate oil filter for the Twin Cam but it is much shorter than the classic filter that was historically used. (Without measuring I’d say half the height.)
A smaller filter presumably allows a smaller oil flow rate, right? Do the engine experts here have a view on this?
(I’ve previously used the W719/30 which I think is the same as the VW filter mentioned by gboudreaux - Wix 51393.)
Nick
If the flow was restricted then the oil pressure would be reduced. It isn`t.
Pressure is 45PSI when very cold, 40 when running normally and circa 25PSI when idling, which is correct.
Eric
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It could be that modern filters are shorter than the original spin-on types simply because modern filtration material is more efficient than the old. The filter manufacturers can achieve the same filtration with less material and less cost.
Mike
I have a high pressure oil pump on the Twink giving 60psi plus when cold and running hot and ticking over 20/25 psi. This was fitted when I bought the car and I see no reason to change it
When the filter was changed it rises a bit more but has now gone back to above figures.Ive no worries on the Man filter and are A very reasonable price £3.50 each and as Eric has said used these for years without a problem.(good enough for me).Go to a dealer and the same size filter will be sold to you of a different make at 3 to 4 times the price.
Cheers
G
Re the long filter V short filter, I have been using the short filter on my cars since 1980. I rebuilt one engine that had covered 40k miles since its last rebuild, and found NO measureable wear on any component, so just put it back together as it came apart, only cleaner.
I concluded that there is no difference, running wise, or any wise, between the long and the short filter, and continue to use the short. Well, I do have a bit of quality old stock, in stock.
Engines serviced every 3000k miles.
Leslie
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If I run short I know who to contact
G
It’s good to hear that users of the shorter filter have been happy with them. I purchased a couple of them for my stock a few days ago, so was merely curious about the size difference. No doubt modern oils and filter materials improve lubrication performance too.
[pedant] 3000K miles – quite the range on that oil! [/pedant]