OPC's are just @#~[@

Just phoned my local OPC to book my car in for it's 12 monthly service. Last service was at 26,000 and is marked in the book as a Major Service. I told the 'gentleman' this and said that the car now has 33,000, so will need it's next service. "Ah yes, okay, so you'd like the 48,000 mile service then sir?" WHAT !!!! [ ] I then pointed out that surely the next servie is a Minor 36,000 serivce..... "eer, yes, so you'd like the Minor service instead.....okay" If I was not so clued up on what was due, then I'd have been paying for a Major 48,000 service and all the trimmings.

hi chaps, just bought 997s from opc sutton coldfield and took delivery wednesday. have to say the car is the nuts and better than even described given i bought the car purely in spec. what engine oil should i use when once it needs topping up?

You should use the exact same type that was used in the last service - should never mix oils types. Oil is a carefully crafted mixture of compounds/molecules(? sorry not a chemist) that is designed to work over a large temperature range - mixing oils will destroy that balance and not give your car the protection it needs.

I doubt if it would be detrimental to top up with an oil of equivalent specification. This is what it says in the Approved Oils TSB - note the last two words...

I was trying to find an article I read about never mixing multi-grade oil, but couldn't find it ... I found this one, but its not as detailed as the one I read previously. I think, the essence of the issue is that the particular chemicals one manufacturer puts in their oil is not necessarily compatible with that of other manufacturers. Personally I would never mix oils, but maybe i'm being too idealistic. Quote from car bibles ... >>In 2006 I was contacted by a Ford engineer who has worked for them for 24 years. These views do not necessarily represent Ford, but it makes an interesting read nevertheless. Some of the things in your site are true like the pure baloney that additive companies put out. I have been with Ford for 24 years in research and development for their power train division. I have forgotten more lube problems than 90% of so-called mechanics will ever know. I like the way some mechanics make statements like they're some sort of God without being able to back them up. All that mallarkey in some of the feedback above claiming 800,000 miles on a gas engine are laughable. There is so much that goes into producing engine oil that dumping "magic" additives into it is just criminal. The quality of most addatives is questionable at best. Whilst the names may be similar, the quality is not. Additives are blended at the proper rate, heat and in the proper proportions by the manufactures of their particular product. Crude supplies are not all the same quality and the additives have to be adjusted for the quality of the base stock being used by each particular company, per batch . Dumping your own personal stuff will more than likely be way inferior to what the oil manufacturer uses. The chemicals will normally differ from the manufacturers[/b] blend, and can cancel each other out to the point where there will be no anti-wear properties left in the product. (This is one reason it's not wise to mix oils[/b] from different[/b] manufacturers[/b] together). Changing the oil from say Mobil to Shell and then to Pennzoil will have a negative effect on your engine from conflicting chemicals. Buy an oil that you may like and STICK TO THAT COMPANY'S product.