SINGAPORE, May 2, 2018 (Reuters) - Asian equities eased on Wednesday, while the dollar traded near a four-month high as investors count down to the US Federal Reserve's upcoming policy statement for clues on the future pace of US monetary tightening. The Fed is seen set to hold interest rates steady this week but will likely encourage expectations that it will lift borrowing costs in June on the back of rising inflation and low unemployment. The US central bank is due to announce its decision at 2 p.m. EDT (18:00 GMT) on Wednesday. MSCI's broadest index of Asia-Pacific shares outside Japan fell 0.3 per cent, while Japan's Nikkei shed 0.2 per cent. Britain's FTSE 100 is seen opening up 20 points, while Germany's DAX is expected to open 20 points lower, according to financial bookmakers. Stephen Innes, head of trading in Asia-Pacific for Oanda in Singapore, said that in addition to focusing on the Fed's policy statement equity investors may be turning cautious on the outlook for corporate profits, given potential cost pressures from recent rises in oil prices. Market participants may be starting to wonder that "perhaps this is as good as it's going to get," Innes said, referring to corporate profits. On Wall Street, the S&P 500 gained 0.25 per cent on Tuesday, helped by optimism over US trade negotiations. Apple's shares rose about 4 per cent after the closing bell. The company beat revenue and profit expectations in its March quarter, with its shares ending the regular session up 2.3 per cent. On Tuesday, the Dow Jones Industrial Average fell 0.27 per cent while the Nasdaq Composite rose 0.9 per cent. The dollar's index against a basket of six major currencies traded near a four-month high set on Tuesday, with the dollar having surged into positive territory for 2018 ahead of the US Federal Reserve's policy decision. The dollar index eased 0.1 per cent to 92.403. It had risen on Tuesday to a peak near 92.570, its strongest level in nearly four months. The dollar was underpinned by the outlook for a strong US economy amid signs of slowdown elsewhere, especially in Europe. The euro zone's economic momentum has been faltering and that seems to have prompted market players to trim their long positions in the euro, said Hirofumi Suzuki, an economist for Sumitomo Mitsui Banking Corporation in Singapore. Against this backdrop, the dollar-buying trend will probably persist for a while, Suzuki added. The euro edged up 0.1 per cent to $1.2002. On Tuesday, the common currency had touched a low of $1.1981, its weakest level since Jan. 11. Against the yen, the dollar struck its highest level in nearly three months at 109.92 yen in early Asian trade. It later pulled back to 109.78 yen, down 0.1 per cent. The benchmark US 10-year Treasury yield was steady on the day at 2.979 per cent.