Is that what you meant to say?Leafsprung said:leaded gas
You are probably getting some VSR just barely noticeable above the "normal" rate. The study I mentioned was a very extensive test and ALL engines showed increased VSR above the control engines (running on leaded) after they lost their "lead memory" (up to 25000miles). But the amount of increase can be very small - so that you may not notice above normal wear.Leafsprung said:Never been a problem for me. Have owned 35 series rovers and have driven a series every day since getting my licence. Have always run unleaded fuel. No probs yet other than the normal wear and tear. My rate of "VSR" has been negligable. However, when rebuilding I normally fit the hardened ones, but come to think of it, can you even buy non-hardened ones?