Audi a4 1.8t 1997 Sport Aeb Engine.. Has anyone used a Oil Sump Bolt from GSf It's totally different from the original.. The Original is £9 + VAT from Audi and GSf Bolts are pennies but the difference is the original has a spread bolt of about 1-1/4" and you then put the Copper Washer on has normal to spread when you tighten up.. The Gsf Bolt has about 5/8" Spread Bolt and comes with a Captivated Metal Washer and you just tighten that up with no Copper Washer which I'm assured by the folk at Gsf is what everyone is using now.. When you get underneath and see the original this gsf bolt is big time different.. But has I say they are all using this Bolt now according to Gsf they have sold 1000's..