Post
by Jim Haseltine » Wed Jul 05, 2023 3:46 pm
Yeah, 'longlife' plugs. TBH, at around £10-12 a time I changed them every couple of years - less now I'm doing around a tenth of the mileage I used to cover.
As for performance filters, I've just pulled a set of BMC and fitted OE filters. Cleaning, washing and reoiling the BMCs isn't a 10 minute job - more like 10 days so unless you want the car off-road for a week or so you need two sets - one set in the car and the other set cleaned and reoiled ready for the next service. And as for reoiling, how much should you apply? Too little and they don't filter out all the dust, too much and not only is air flow blocked but excess oil is sucked in. I found a coating of red BMC oil inside the downstream parts of my air boxes and in the turbo intakes. The filters I took out I soaked in a full bottle of BMC cleaner for a couple of days but they still aren't free of oil.