This is a silly question, but why are you driving below 2k rpm? I rarely drive below 2800 rpm. Keeping the revs up keeps the splash lubrication going for your IMS bearing. The only time I'm below 2k is for a split second in 1st gear! 
Sorry, couldn't resist. I'll defer to someone who's actually helpful now! 
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98 Porsche Boxster, silver, 2.5 / 67 Karmann Ghia, black, 1500sp SOLD! / 98 BMW Z3, 2.8 inline 6, atlanta blue metallic SOLD! / 75 Porsche 914, 2270 type4, laguna blue SOLD! / 72 Porsche 914, 1.7 type 4, signal orange SOLD! / 74 Karmann Ghia, 1600dp, black SOLD! / 74 Triumph TR6, 2.5 inline 6, sapphire blue SOLD!
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