Hey guys, I’ve been using some oil since my last customer service (last year before 16000 km). Not much, but I’ve noticed something since I checked every 2 weeks. I’ve been filling in the 5W30 at Mazda and now I’d like to tip over a little. Doesn’t it matter which 5w30 I take that’s approved for my Mx-5? Got one of LiquiMoly there, also has approval for my MX5 2.0 l NC. Can there be problems with the mixing between the already existing and the existing one? after tilted? or why are there so many different 5W30s even from the same manufacturer? Oh yes, I want to install a new chassis in the summer. Does any of you already have experience with the chassis of SPS Motorsport (BC Racing) or with the BC Racing itself? Are there actually differences or is this from SPS just another tacken more expensive, because of SPS? Thanks already for your answers!